Garuda - Garba Rujukan Digital

Aliran Filsafat dalam Pendidikan Sains : Narrative Review Muda, Mhd. Abror Muzakkir; Musli, Musli
Justek : Jurnal Sains dan Teknologi Vol 7, No 4 (2024): Desember
Publisher : Unversitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/justek.v7i4.27930

Abstract: This research aims to explore the application of various schools of philosophy in science learning, such as constructivism, empiricism, rationalism, pragmatism, and reconstructionism. The method used in this study is a literature review with a narrative review approach. The result of this study is that the application of philosophy in science learning, such as constructivism, empiricism, rationalism, pragmatism, and reconstructivism, can improve students' understanding of scientific concepts and critical thinking skills. Each stream provides a different approach, from hands-on experiential learning to problem-solving relevant to everyday life and linking science to social and ethical contexts. This integration of philosophy helps create a more dynamic and meaningful learning environment.Abstrak: Penelitian ini bertujuan untuk mengeksplorasi penerapan berbagai aliran filsafat dalam pembelajaran sains, seperti konstruktivisme, empirisme, rasionalisme, pragmatisme, dan rekonstruktivisme. Metode yang digunakan pada penelitian ini adalah literatur review dengan pendekatan narrative review. Hasil penelitian ini adalah penerapan filsafat dalam pembelajaran sains, seperti konstruktivisme, empirisme, rasionalisme, pragmatisme, dan rekonstruktivisme dapat meningkatkan pemahaman konsep ilmiah dan keterampilan berpikir kritis peserta didik. Setiap aliran memberikan pendekatan yang berbeda, mulai dari pembelajaran berbasis pengalaman langsung hingga pemecahan masalah yang relevan dengan kehidupan sehari-hari, serta mengaitkan sains dengan konteks sosial dan etika. Integrasi filsafat ini membantu menciptakan lingkungan belajar yang lebih dinamis dan bermakna.

Sistem Informasi Inventaris Barang Berbasis Website pada SMP Negeri 55 Jakarta Hasanah, Riyan Latifahul; Laia, Dharma Setia
Justek : Jurnal Sains dan Teknologi Vol 7, No 4 (2024): Desember
Publisher : Unversitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/justek.v7i4.27354

Abstract: Recording and managing inventory of goods at SMP Negeri 55 Jakarta still uses manual methods, so that it often experiences writing errors, inaccurate stock calculations, inaccurate history of goods in and out, lost or misplaced data and limited accessibility of data in real time. The purpose of this study is to design a website-based inventory information system that can provide convenience and improve the accuracy of the inventory documentation process. The method used is the waterfall method which consists of the requirements, design, implementation, verification and maintenance phases. The results of the study show that by implementing an information system in managing inventory of goods, the process of recording incoming goods, outgoing goods and borrowing goods can be done more easily, and reduce recording errors when compared to the manual system. In addition, monitoring of stock of goods can be done in real time so that it is easier to plan ordering goods and the risk of losing goods can be minimized.Abstrak: Pencatatan dan pengelolaan inventaris barang di SMP Negeri 55 Jakarta masih menggunakan metode manual, sehingga seringkali mengalami kesalahan penulisan, penghitungan stok yang tidak tepat, riwayat keluar-masuk barang yang tidak akurat, data hilang atau terselip dan keterbatasan aksesibilitas data secara real time. Tujuan penelitian ini adalah untuk merancang sebuah sistem informasi inventaris barang berbasis website yang dapat memberikan kemudahan dan meningkatkan ketepatan proses dokumentasi inventaris. Metode yang digunakan yaitu metode waterfall yang terdiri dari fase requirement, design, implementation, verification dan maintenance. Hasil penelitian menunjukkan bahwa dengan menerapkan sistem informasi dalam pengelolaan inventaris barang, maka proses pencatatan barang masuk, barang keluar dan peminjaman barang dapat dilakukan dengan lebih mudah, serta mengurangi kesalahan pencatatan jika dibandingkan dengan sistem manual. Selain itu pemantauan stok barang dapat dilakukan secara real time sehingga memudahkan dalam perencanaan pemesanan barang dan resiko kehilangan barang dapat diminimalisir.

Penerapan Metode Ensemble K-Nearest Neighbor untuk Memprediksi Indeks Pembangunan Manusia di Provinsi Sumatera Utara Oktaviana, Oktaviana; Lubis, Riri Syafitri; Widyasari, Rina
Justek : Jurnal Sains dan Teknologi Vol 7, No 4 (2024): Desember
Publisher : Unversitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/justek.v7i4.27031

Abstract: The Human Development Index is one of the important indicators to illustrate the level of success of a region in trying to build the quality of its population in terms of health, education and others. On the island of Sumatra out of 10 provinces, the Human Development Index in North Sumatra Province is still far behind when compared to Riau Islands Province. This is due to the lack of government role in improving human development in a region. The purpose of this study is to determine the prediction results of the Human Development Index value in North Sumatra Province using the Ensemble K-Nearest Neighbor method and see how much accuracy the Ensemble K-Nearest Neighbor method has to predict the Human Development Index. One method that can be used in predicting the Human Development Index is the Ensemble K-Nearest Neighbor method. K-Nearest Neighbor is a method that determines the label (class) based on distance. To optimize the performance of the K-NN method in making predictions, ensemble techniques are needed. Based on the research conducted, the prediction results obtained using the K-Nearest Neighbor Ensemble method have an average of 72.97 with a MAPE value of 2.1%, which is much better when compared to only using the Single K-NN method which has a MAPE value of 2.38%. Abstrak: Indeks Pembangunan Manusia adalah salah satu indikator penting untuk menggambarkan tingkat keberhasilan suatu daerah dalam usaha membangun kualitas penduduknya baik dari segi kesehatan, pendidikan maupun lainnya. Di pulau Sumatera dari 10 provinsi yang ada, Indeks Pembangunan Manusia di Provinsi Sumatera Utara masih jauh tertinggal jika dibandingkan dengan Provinsi Kepulauan Riau. Hal demikian diakibatkan masih kurangnya peran pemerintah dalam meningkatkan pembangunan manusia disuatu daerah. Tujuan dari penelitian ini yaitu untuk mengetahui hasil prediksi nilai Indeks Pembangunan Manusia di Provinsi Sumatera Utara menggunakan metode Ensemble K-Nearest Neighbor serta melihat seberapa besar tingkat akurasi metode Ensemble K-Nearest Neighbor untuk memprediksi Indeks Pembangunan Manusia. Salah satu metode yang dapat digunakan dalam memprediksi Indeks Pembangunan Manusia adalah metode Ensemble K-Nearest Neighbor. K-Nearest Neighbor adalah salah satu metode yang menentukan label (class) berdasarkan jarak. Untuk mengoptimalkan kinerja metode K-NN dalam melakukan prediksi diperlukan teknik ensemble. Berdasarkan penelitian yang dilakukan maka diperoleh hasil prediksi menggunakan metode Ensemble K-Nearest Neighbor memiliki rata-rata sebesar 72,97 dengan nilai MAPE 2,1% hal tersebut jauh lebih baik jika dibandingkan hanya menggunakan metode K-NN Tunggal yang memiliki nilai MAPE sebesar 2,38%.

Literatur Review Implementasi The Flipped Classroom: Apakah Efektif Terhadap Learning Outcomes Peserta Didik pada Abad 21? Kesumah, Mayang Dela; Siburian, Jodion
Justek : Jurnal Sains dan Teknologi Vol 7, No 4 (2024): Desember
Publisher : Unversitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/justek.v7i4.27742

Abstract: The goal of this study was to analyze and evaluate the effectiveness of the implementation of the flipped classroom on learning outcomes of 21st century students through literature review. This study uses a literature method from 22 journals that have the subject of the flipped classroom. These journals were obtained from the Google Scholar database for the 2020-2024 range. The results of the literature of almost all journals show that there is a positive and quite significant difference in learning outcomes in the implementation of the flipped classroom compared to traditional learning models. 90.9% of journals show that the implementation of the flipped classroom can improve students’ higher order thinking skills (HOTS), while 9.1% of other journals show no difference with traditional learning models.Abstrak: Tujuan dari penelitian ini untuk menganalisis dan menilai efektivitas implementasi the flipped classroom terhadap learning outcomes peserta didik abad ke-21 melalui tinjauan literatur. Penelitian ini menggunakan metode literatur dari 22 jurnal yang memiliki pokok bahasan the flipped classroom. Jurnal ini diperoleh dari Google Scholar database dari tahun 2020-2024. Hasil dari literatur menunjukkan bahwa terdapat perbedaan learning outcomes yang positif dan cukup signifikan dalam implementasi the flipped classroom dibandingkan dengan model pembelajaran tradisional. 90.9% jurnal menunjukkan implementasi the flipped classroom mampu meningkatkan Higher Order Thinking Skills (HOTS) peserta didik, sedangkan 9.1% jurnal lainnya tidak terdapat perbedaan dengan model pembelajaran tradisional.

Model Pembelajaran Problem Based Learning Untuk Meningkatkan Hasil Belajar Matematika Siswa SD Mahsup, Mahsup; Abdillah, Abdillah; Syafril, Syafril
Justek : Jurnal Sains dan Teknologi Vol 7, No 4 (2024): Desember
Publisher : Unversitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/justek.v7i4.27995

Abstract: The purpose of this study is to analyze the use of the Problem Based Learning (PBL) learning model in learning can improve the learning outcomes of Mathematics for elementary school students. The research uses the meta-analysis method. Data collection was carried out by browsing electronic journals through google scholar and documentation studies in the library. Research data sources from 12 journals. Data analysis was carried out in a qualitative description. The results of the study show that the application of the Problem Based Learning model has a positive influence on improving student learning outcomes. This is marked by an increase in learning outcomes before and after the implementation of the Problem Based Learning modelAbstrak: Tujuan dari penelitian ini adalah untuk menganalisis penggunaan model pembelajaran Problem Based Learning (PBL) dalam pembelajaran dapat meningkatkan hasil belajar Matematika siswa SD. Penelitian menggunakan metode meta analisis. Pengumpulan data dilakukan dengan cara menelusuri jurnal elektronik melaluigoogle scholardan studi dokumentasi di perpustakaan. Sumber data penelitian dari 12 jurnal. Analisis data dilakukan secara deskripsi kualitatif. Hasil penelitian bahwa penerapan model Pembelajaran Problem Based Learning memiliki pengaruh yang positif dalam meningkatkan hasil belajar siswa. Hal itu ditandai dengan adanya peningkatan hasil belajar sebelum dan sesudah diterapkannya model pembelajaran Problem Based Learning

Perbandingan Kualitas Biodiesel Minyak Biji Ketapang (Tereminalia cattapa linn) dan Minyak Biji Jarak Pagar (Jatropa curcas linnaeus) Pramawan, Nathanael Setna; Hutapea, Henny Parida
Justek : Jurnal Sains dan Teknologi Vol 7, No 4 (2024): Desember
Publisher : Unversitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/justek.v7i4.27962

Abstract: The depletion of petroleum energy reserves forces us to look for other alternatives as energy sources. One alternative that can be used is the use of biodiesel from vegetable oil. The large number of ketapang trees and jatropha trees in Parangjoro Sukoharjo village have great potential for making biodiesel. The aim of this research is to determine the best quality in accordance with biodiesel quality standards from ketapang seed oil (Tereminalia cattapa linn) and jatropha curcas seed oil (Jatropa curcas linnaeus). The method for making biodiesel uses a transesterification reaction (reactive extraction) with an HNO3 acid catalyst and a Ca(OH)2 base catalyst. Ketapang seed oil biodiesel with the addition of the HNO3 catalyst overall gives better results and is in accordance with SNI 1782, 2015 standards: yield of 67%, density at 40 °C 880 kg/m3, water content 0.04%, viscosity at 40 °C C 3.47 mm²/s, acid number 0.31 mg-KOH/g, flash point 17.9 °C, min, fog point 110 °C, max.Abstrak: Menipisnya cadangan sumber energi minyak bumi memaksa untuk mencari alternatif lain sebagai sumber energi. Salah satu alternatif yang dapat digunakan adalah pemanfaatan biodiesel dari minyak nabati. Banyaknya pohon ketapang dan pohon jarak pagar di desa Parangjoro Sukoharjo mempunyai potensi besar dalam pembuatan biodiesel. Tujuan penelitian ini untuk menentukan kualitas terbaik sesuai dengan standar baku mutu biodiesel dari minyak biji ketapang (Tereminalia cattapa linn) dan minyak biji jarak pagar (Jatropa curcas linnaeus). Metode pembuatan biodiesel menggunakan reaksi transesterifikasi (reactive extraction) dengan katalis asam HNO3 dan katalis basa Ca(OH)2. Biodiesel minyak biji ketapang dengan penambahan katalis HNO3 secara keseluruhan memberikan hasil lebih baik dan sesuai dengan standart SNI 1782, 2015 : rendemen sebesar 67%, massa jenis suhu 40 °C 880 kg/m3, kadar air 0,04%, viskositas suhu 40 °C 3,47 mm²/s, angka asam 0,31 mg-KOH/g, titik nyala 17,9 °C, min, titik kabut 110 °C, maks.

Perancangan Aplikasi Sistem Informasi Perhitungan Point Pelanggaran Tata Tertib di SMA Berbasis Web Riana, Riana; Rusdan, Rusdan; Sunardi, Sunardi
Justek : Jurnal Sains dan Teknologi Vol 7, No 4 (2024): Desember
Publisher : Unversitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/justek.v7i4.23572

Abstract: The implementation of an information system for managing school rule violations provides several significant benefits, including enhanced administrative efficiency and improved data accuracy through automation, which helps minimize human error in recording and calculating violation points. Furthermore, this system raises students' awareness of the importance of adhering to school regulations, thereby fostering a school culture that is more transparent, responsive, and data-driven. This research, conducted at SMAN 7 Mataram, aimed to develop a web-based information system application for calculating disciplinary violation points at the school. The research employed the Waterfall methodology, consisting of five stages: planning, analysis, design, implementation, and maintenance. Data collection techniques included observation to identify existing evaluation procedures and applicable regulations, as well as interviews to understand the needs for sanctioning and the challenges faced in manual point calculation. Based on the results of black-box testing conducted with the staff of SMAN 7 Mataram, the web-based information system for calculating disciplinary violation points functioned effectively and efficiently. It successfully calculated total violation points for students and provided detailed reports, demonstrating its effectiveness in supporting the school's administrative processesAbstrak: Penerapan sistem informasi dalam penanganan pelanggaran tata tertib sekolah memiliki manfaat yang signifikan, diantaranya meningkatkan efisiensi administrasi, akurasi data yang dihasilkan secara otomatis menghindari kesalahan manusia dalam pencatatan dan perhitungan poin pelanggaran. Di sisi lain sistem informasi ini juga dapat meningkatkan kesadaran siswa akan pentingnya mematuhi aturan sekolah, membantu membangun budaya sekolah yang lebih transparan, responsif, dan berorientasi pada data. Penelitian ini dilakukan di SMAN 7 Mataram, salah satu tujuan penelitian ini yaitu merancang sebuah aplikasi sistem informasi berbasis web untuk perhitungan point pelanggaran tata tertib di SMAN 7 Mataram. Adapun metode yang digunakan pada Penelitian ini yaitu menggunakan metode Waterfall, terdiri dari lima tahapan yaitu: tahap perencanaan, tahap analisis, tahap perancangan, tahap implementasi, dan tahap pemeliharaan. Sedangkan Teknik pengumpulan data dilakukan melalui metode observasi untuk mengetahui langkah-langkah penilaian dan tata tertib yang berlaku, dan wawancara untuk memahami kebutuhan pemberian sanksi dan kendala yang dialami dalam pemberian point secara manual. Berdasarkan hasil blackbox testing yang diberikan kepada pengguna dalam hal ini staf SMAN 7 Mataram, sistem informasi berbasis web untuk perhitungan point pelanggaran tata tertib di SMAN 7 Mataram dapat berjalan dengan baik dan terbukti efektif serta efisien dalam menghitung total poin pelanggaran siswa serta menyediakan laporan yang rinci.

Analisis Kualitas Air Sumur Berdasarkan Parameter Fisika, Kimia Dan Mikrobiologi di Desa Purbayan Sukoharjo Putri, Carollin Hasanah Esucho; Hutapea, Henny Parida
Justek : Jurnal Sains dan Teknologi Vol 7, No 4 (2024): Desember
Publisher : Unversitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/justek.v7i4.28015

Abstract: Water is one of the components of life that plays an important role in the survival of living things. In this study, well water quality is regulated in Permenkes No. 32 of 2017 concerning environmental health quality standards and water health requirements for sanitary hygienic purposes and public baths. This study aims to assess and provide information on the quality of well water in Purbayan Village, Sukoharjo against the requirements of water quality standards. This research uses descriptive and quantitative methods. The sampling point in the well that is close to the industry is called well A and the well that is far from the industry is well B. The results obtained in well A temperature 25.0°C, TDS 78.0 mg/L, pH 7.66, iron content 0.636 mg/L, manganese <0.02 mg/L, zinc 0.025 mg/L, nitrate 0.457 mg/L, nitrite 0.002 mg/L, sulfate 11.393 mg/L, chloride 31.12 mg/L, total hardness 146 mg/L, coliform total 2 Jml/100 ml and in well B temperature 25,0°C, TDS 81 mg/L, pH 7.18, iron content 0.0978 mg/L, zinc 0.031 mg/L, nitrite 0.002 mg/L, sulfate 61.081 mg/L, chloride 19.321 mg/L, total hardness 186 mg/L, coliform total 2 Jml/100 ml shows that all physical, chemical and microbiological parameters meet the requirements of water quality standards. The microbiological parameters of the fecal coli test in wells A and B did not meet the quality standard requirements with a result of 2 Jml/100ml.Abstrak: Air merupakan salah satu yang memiliki peranan penting dalam keberlangsungan makhluk hidup sehingga kualitas dari air sangat perlu di jaga. Tujuan Penelitian mengkaji dan memberikan informasi kualitas air sumur di Desa Purbayan Sukoharjo terhadap syarat baku mutu air bersih. Penelitian ini menggunakan metode deskriptif kuantitatif. Titik pengambilan sampel pada sumur yang dekat dengan industri disebut sumur A dan sumur yang jauh dari industri sumur B. Hasil yang diperoleh pada sumur A temperatur 25,0°C, TDS 78,0 mg/L, pH 7,66, kandungan besi 0,636 mg/L, mangan <0,02 mg/L, seng 0,025 mg/L, nitrat 0,457 mg/L, nitrit 0,002 mg/L, sulfat 11,393 mg/L, klorida 31,12 mg/L, kesadahan total 146 mg/L, total coliform 2 Jml/100 ml dan pada sumur B temperatur 25,0°C, TDS 81 mg/L, pH 7,18, kandungan besi 0,0978 mg/L, seng 0,031 mg/L, nitrit 0,002 mg/L, sulfat 61,081 mg/L, klorida 19,321 mg/L, kesadahan total 186 mg/L, total coliform 2 Jml/100 ml. Menunjukkan keseluruhan parameter fisika dan kimia memenuhi syarat baku mutu air. Parameter mikrobiologi uji koli tinja pada sumur A dan B tidak memenuhi syarat baku mutu dengan hasil masing- masing 2 Jml/100ml.

Penerapan Scrum Pada Perancangan Sistem Informasi Rumah Santri Indonesia Widyastuti, Reni; Hartati, Tri; Supriyadi, Budi
Justek : Jurnal Sains dan Teknologi Vol 7, No 4 (2024): Desember
Publisher : Unversitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/justek.v7i4.26767

Abstract: The santri house was founded on September 13 2017 by the Indonesian Santri House Foundation located in Central Jakarta. The implementation of services provided to the community and especially prospective students who are accepted either through the scholarship route or the independent route is still carried out manually, resulting in obstacles in the development of new student registration services. This research aims at the Rumah Santri Indonesia Foundation to improve manual services to become computerized so that an integrated information system can be built so that it can improve excellent services. The method for developing a student service information system uses a Scrum frame in agile development with a systematically structured framework so that the implementation of the information system development is shorter. As a result, this santri registration service system has maximum performance so that all parties with an interest in the Santri House are served and can provide increased trust in the Foundation.Abstrak: Rumah santri didirikan sejak tahun 13 September 2017 oleh Yayasan Rumah Santri Indonesia berlokasi di Jakarta Pusat. Pelaksanaan layanan yang diberikan ke masyarakat dan khususnya para calon santri yang diterima baik dengan jalur bea siswa atau jalur mandiri masih dilakukan manual sehingga terjadi hambatan dalam pengembangan layanan pendaftaran santri baru. Penelitian ini bertujuan Yayasan Rumah Santri Indonesia memperbaiki pelayanan manual menjadi terkompeterisasi sehingga dibangun sistem informasi yang terintegrasi sehingga dapat meningkatkan layangan prima. Metode pembangunan sistem informasi layanan santri dengan menggunakan Frame Scrum pada Agile Devolepment dengan kerangka kerja yang tersusun sistematis sehingga pelaksanaannya pembangunan system informasi lebih singkat. Hasilnya sisitem layanan pendaftaran santri ini memiliki performa yang maksimal sehingga seluruh pihak yang berkepentingan dengan Rumah Santri terlayani dan dapat memberikan peningkatan kepercayaan pada Yayasan.

Financial Management of the Muhammadiyah Mosque of Bantaeng City, Indonesia as an Improvement Effort Mosque Welfare Suarni, A; Wanda, S T; Nurlina, Nurlina
Justek : Jurnal Sains dan Teknologi Vol 7, No 4 (2024): Desember
Publisher : Unversitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/justek.v7i4.29408

Abstract: In Indonesia, the mosque is the largest place of worship of the five religions recognized by the people of Indonesia, especially in South Sulawesi. The mosque is one of the most important institutions in Islamic Ummah society and has an important role in daily life. One of the early examples of the Prophet Muhammad when he migrated from Mecca to Medina was building a mosque. Around the mosque there are universities, hospitals, hotels and other facilities that are developing around the mosqueThe research is aimed find out the financial management of the Muhammadiyah Mosque in Bantaeng City Indonesia. The research used qualitative descriptive methods with data collection from observations and interviews. In this study there are 10 Muhammadiyah mosques that are the object of research and the interviews are head of department in mosques and treasures of the mosques. The results of the research found that in the financial reports of the Bantaeng Muhammadiyah Mosque six of them preparing and has financial reports on a regular basis while four of them need to improve transparency in communicating financial information to the Jama’ah. The funds are kept and deposited into the Mosque Account, ensuring efficiency in financial management. Donations from the Jamaah are not only capital for physical development, but also support various religious services and activities. With sustained support, the mosques can continue to improve facilities, services, and support religious activities and education, which in turn strengthen community ties and religious experiences. Indeed, financial management is very important in every mosque because every mosque certainly needs good financial management so that it will make mosque activities easier.

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
-

Editorial Address
-

Location
Kota mataram,

Nusa tenggara barat

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name -

Contact Email -

Phone -

Journal Mail Official -

Editorial Address -

Location Kota mataram, Nusa tenggara barat INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
-

Editorial Address
-

Location
Kota mataram,

Nusa tenggara barat

INDONESIA