Article Per Year (5 Year)
p-Index From 2021 - 2026
5.102
P-Index
This Author published in this journals
All Journal Jurnal Teknik Industri Jurnal Kebidanan PROSIDING SEMINAR NASIONAL JURNAL LITBANG JURNAL KESEHATAN FIKkeS Jurnal Teknik ITS SURYA SENI Perspektif : Review Penelitian Tanaman Industri Rekayasa Sipil Jurnal Ilmiah Administrasi Publik (JI@P) Journal of Civil Engineering Fondasi: Jurnal Teknik Sipil PENELITIAN DAN KARYA ILMIAH The Southeast Asia Law Journal Prosiding Seminar Nasional Pakar Jurnal Pendidikan Sejarah dan Riset Sosial Humaniora (KAGANGA) Jurnal Ilmiah Ecobuss JTP - Jurnal Teknologi Pendidikan IJIES (International Journal of Innovation in Enterprise System) Menara Ilmu JURNAL MANAJEMEN DAN BISNIS INDONESIA Journal of Vocational Education Studies (JOVES) Buletin Palma Perspektif, Review Penelitian Tanaman Industri Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences JURPIKAT (Jurnal Pengabdian Kepada Masyarakat) El-kahfi : Journal of Islamic economics Jurnal Litbang Provinsi Jawa Tengah Charity : Jurnal Pengabdian Masyarakat EKONOMIKA45 JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Sci-Tech Journal Jurnal Abdi Masyarakat Multidisiplin Edu Research : Jurnal Penelitian Pendidikan Jurnal Penelitian dan Karya Ilmiah Lembaga Penelitian Universitas Trisakti JURNAL TEKNIK INDUSTRI Media Ekonomi Concept: Journal of Social Humanities and Education Jurnal Riset Rumpun Ilmu Tanaman Journal of Sustainable Development Issues Aladalah: Jurnal Politik, Sosial, Hukum dan Humaniora Indonesian Journal of Science, Technology, and Humanities Tabsyir: Jurnal Dakwah Dan Sosial Humaniora Prosiding Seminar Nasional Unimus Observasi: Jurnal Publikasi Ilmu Psikologi Jurnal Pengabdian Masyarakat SAPANGAMBEI MANOKTOK HITEI IRDH International Journal of Technology, Agriculture and Natural Sciences (IRDH IJTANS) PESHUM Paradigma: Jurnal Filsafat, Sains, Teknologi, dan Sosial Budaya
Budi Santosa
Unknown Affiliation
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Transportation Veterinary Other

Published : 71 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 71 Documents
Search

 4   5   6   7   8 
Hubungan Antara Konsep Diri Dengan Optimisme Pada Remaja Di Jorong Tanjung Medan Kabupaten Pasaman Fasnia Septa Utama; Budi Santosa; Iswantir M; Fadhilla Yusri
Concept: Journal of Social Humanities and Education Vol. 2 No. 1 (2023): March : Concept: Journal of Social Humanities and Education
Publisher : Sekolah Tinggi Ilmu Administrasi Yappi Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/concept.v2i1.246

Abstract

Tulisan ini bertujuan untuk mengetahui apakah terdapat hubungan antara konsep diri dengan optimisme pada remaja atau tidak. Penelitian ini dilatar belakangi pengamatan yang peneliti lakukan pada remaja di Jorong Tanjung Medan Kabupaten Pasaman, remaja cenderung kurang memiliki penilaian yang baik terhadap dirinya lebih cenderung mengandalkan keberuntungan dari pada usaha nya sendiri dalam mencapai sesuatu hal yang mereka inginkan serta lebih pasrah menerima apa yang terjadi pada dirinya baik yang positif maupun yang negatif. Populasi dalam penelitian ini adalah 27 orang remaja yang ada di jorong tanjung medan karena populasi kurang dari 100 orang maka sampel penelitiannya diambil semua yaitu 27 orang. Jenis penelitian ini adalah penelitian kuantitatif korelasi. Penelitian dapat mencari, menjelaskan sesuatu hubungan, memperkirakan dan menguji berdasarkan teori yang ada. Penelitian korelasi bertujuan mengungkapkan hubungan korelatif antara variabel Instrument yang digunakan berupa skala likert. Sedangkan uji persyaratan analisis menggunakan uji normalitas, uji linieritas, uji korelasi rank spearman rho dan uji hipotesis menggunakan dalam SPSS 26. Hasil penelitian ini menunjukkan bahwa konsep diri dengan optimisme memiliki hubungan sebesar 0,729 = 72% yang dikategorikan dalam hubungan kuat/tinggi, semakin bagus konsep diri seseorang maka akan semakin bagus pula optimismenya. Jadi dapat disimpulkan bahwa konsep diri dengan optimisme memiliki hubungan yang kuat/tinggi, semakin tinggi konsep diri maka semakin tinggi pula optimisme.
Hubungan Tingkat Religiusitas dengan Kemampuan Coping Stress Siswa di SMAN 2 Payakumbuh Azzati Nur Laili; Budi Santosa; Fadhilla Yusri; Syawaluddin Syawaluddin
Concept: Journal of Social Humanities and Education Vol. 2 No. 4 (2023): Desember : Concept: Journal of Social Humanities and Education
Publisher : Sekolah Tinggi Ilmu Administrasi Yappi Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/concept.v2i4.626

Abstract

This research aims to determine whether there is a relationship between the level of religiosity and a person's ability to cope with stress and to determine the magnitude of the relationship between the level of religiosity and the ability to cope with stress. This type of research is quantitative correlational research, because it aims to determine whether there is a relationship or influence between two variables. The population in this study was classes X and The samples were taken using a purposive sampling technique because there were several considerations. Data collection used a questionnaire instrument with a Likert scale. The results of the research show that based on the r_count value (Pearson Correlations), it is known that the r_count value for the relationship between the level of Religiosity (X) and the ability to Coping with Stress (Y) is r_xy of 0.479 and r_table df n-2 (60-2) 58, namely 0.254, so it can be concluded that There is a relationship between the level of religiosity and the ability to cope with stress. Because r_count or Pearson Correlations in this analysis is positive, it means the relationship between the two variables is positive. The calculation results of the coefficient of determination are 22.9%, so it can be said that the magnitude of the relationship is 22.9%, the variance in the level of religiosity is associated with the variance in students' stress coping abilities at SMAN 2 Payakumbuh.
Perbandingan Hasil Immunocromatography Merk A dan B Pada Pemeriksaan Hepatitis B Surface Antigen (HBsAg) Hafiz Mukaromah; Budi Santosa; Meutia Srikandi Fitria
Sci-tech Journal Vol. 3 No. 2 (2024): Sci-Tech Journal (STJ) In Press
Publisher : MES Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56709/stj.v3i3.569

Abstract

Hepatitis is an infectious disease that arises from infection with the hepatitis B virus (VHB), a member of the HBV family that can cause acute or chronic inflammation of the liver, which in some cases can progress to cirrhosis or liver cancer. HBsAg is a type of antigen contained in the membrane of the hepatitis B virus and can be detected in infected body fluids. Immunochromatography is a qualitative analysis method that binds antigen-antibodies in the form of a rapid test that detects the presence of targets in the sample without the use of special tools. The type of study was conducted using cross sectional with serum samples from 38 respondents who were examined for HBs antigen using the Immunocromatography method brand A and B. The results showed a negative result of 100%. After the analysis data using the Mann Whitney statistical test, the asymp.sig value (p-value) obtained was 1.803 which means >0.05, there was no significant comparison between brand A (wondfo) and brand B (monotest) diagnosing HbsAg). It was concluded that there was no significant comparison in the HBsAg examination using Immunocromatography brand A and B
PENDAMPINGAN PENGUMPULAN DATA LINGKUNGAN UNTUK PENGELOLAAN LINGKUNGAN CERDAS (SMART ENVIRONMENT) DI DESA JAMALI Prabawasari, Veronika Widi; Paranita Asnur; Aisyah; Rehulina Apriyanti; Wahyu Prakosa; Budi Santosa
Jurnal Pengabdian Masyarakat Sapangambei Manoktok Hitei Vol. 4 No. 2 (2024): Jurnal Pengabdian Masyarakat SAPANGAMBEI MANOKTOK HITEI
Publisher : Universitas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36985/dgbaez44

Abstract

Kegiatan pengabdian ini bertujuan untuk mendukung pengumpulan data smart environmental di Desa Jamali, Kabupaten Cianjur, Jawa Barat. Program ini mengintegrasikan teknologi dengan pengelolaan lingkungan berkelanjutan untuk mengatasi berbagai masalah, seperti kekurangan air, polusi udara, dan inefisiensi dalam sektor pertanian. Dalam rangka mencapai tujuan ini, diskusi kelompok terarah (FGD) dan survei dilakukan untuk mengidentifikasi tantangan lingkungan utama. Hasilnya menunjukkan adanya penggunaan air tanah yang berlebihan oleh sektor peternakan, manajemen sampah yang buruk, serta pemanfaatan lahan pertanian yang belum optimal. Untuk mengatasi tantangan tersebut, sejumlah solusi direkomendasikan, termasuk penampungan air hujan, optimalisasi lahan pertanian, serta pengembangan ruang terbuka hijau yang dapat meningkatkan kualitas lingkungan. Inisiatif ini tidak hanya berkontribusi pada pengembangan desa cerdas di Indonesia, tetapi juga mendorong partisipasi aktif masyarakat dalam pelestarian lingkungan. Melalui program ini, diharapkan masyarakat dapat mengadopsi praktik berkelanjutan yang dapat memperbaiki kondisi lingkungan dan meningkatkan kualitas hidup mereka. Dengan mengintegrasikan teknologi dan pendekatan partisipatif, kegiatan ini diharapkan mampu memberikan dampak positif yang berkelanjutan bagi Desa Jamali dan sekitarnya. Selain itu, pengumpulan data yang efektif akan memfasilitasi perencanaan dan pengambilan keputusan yang lebih baik dalam pengelolaan sumber daya alam, sehingga memungkinkan desa ini untuk menjadi contoh bagi daerah lain dalam penerapan konsep desa cerdas. Melalui pelibatan semua pihak, dari pemerintah setempat hingga masyarakat, kolaborasi ini diharapkan dapat menginspirasi inisiatif serupa di wilayah lain.
Analisis Perbandingan Kinerja Keuangan Subsektor Industri Konstruksi, Telekomunikasi Dan Real Estate Di Bursa Efek Indonesia Sebelum Dan Sesudah Penerapan Psak 115 Dassaad, Dassaad; Riyanti, Riyanti; Mei Raharja; Budi Santosa; Dyah Palupi
PESHUM : Jurnal Pendidikan, Sosial dan Humaniora Vol. 5 No. 1: Desember 2025
Publisher : CV. Ulil Albab Corp

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56799/peshum.v5i1.12663

Abstract

Pendapatan kontrakdari pelanggan diatur dalam PSAK 115 yang disahkan pada tanggal 12 Januari 2022 oleh Dewan Standar Akuntansi Keuangan dan mulai berlaku efektif 1 Januari 2024. Pendapatan kontrak dengan pelanggan merupakan adopsi dari IFRS 15: Revenue From Contacts With Costumers. PSAK 115 memiliki tujuan untuk menetapkan prinsip yang diterapkan entitas untuk melaporkan informasi yang berguna kepada pengguna laporan keuangan tentang sifat, jumlah, waktu, ketidakpastian pendapatan dan arus kas yang timbul dari kontrak dengan pelanggan. Penelitian ini bertujuan untuk mengetahui perbandingan kinerja keuangan dengan indikator Total Asset Turnover (TATO) dan Debt to Asset Ratio (DAR) pada perusahaan subsektor industri konstruksi, telekomunikasi dan real estate yang terdaftar di Bursa Efek Indonesia periode 2017–2024 sebelum dan sesudah penerapan PSAK 115. Penelitian menggunakan pendekatan kuantitatif dengan data sekunder berupa laporan keuangan tahunan yang diperoleh dari Bursa Efek Indonesia. Analisis dilakukan melalui regresi linear berganda menggunakan perangkat lunak Eviews 13, dengan pengujian hipotesis melalui Uji Beda (Wilcoxon). Hasil penelitian menunjukkan bahwa adanya perbedaan yang signifikan dari variabel TATO dengan penurunan nilai kinerja keuangan perusahaan dan DAR dengan peningkatan nilai kinerja keuangan perusahaan.
Pengaruh Net Profit Margin, Total Asset Turnover, Return On Asset, Return On EquityTerhadap Pertumbuhan Laba Pada Perusahaan Subsektor Jasa Kontruksi Dan Bangunan Yang Terdaftar Di Bursa Efek Indonesia Antoni, Antoni; Stanty Aufia Rachmat; Ratih Juwita; Andika Arbi Rayhansyah; Budi Santosa
PESHUM : Jurnal Pendidikan, Sosial dan Humaniora Vol. 5 No. 1: Desember 2025
Publisher : CV. Ulil Albab Corp

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56799/peshum.v5i1.12955

Abstract

Pertumbuhan laba merupakan mencerminkan keberhasilan perusahaan dalam meningkatkan nilai ekonomi serta menjaga keberlanjutan kinerja keuangan. Penelitian ini bertujuan untuk menganalisis pengaruh Net Profit Margin (NPM), Total Asset Turnover (TATO), Return on Assets (ROA), dan Return on Equity (ROE) terhadap pertumbuhan laba pada perusahaan subsektor jasa konstruksi dan bangunan yang terdaftar di Bursa Efek Indonesia periode 2020–2024. Penelitian menggunakan pendekatan kuantitatif dengan data sekunder berupa laporan keuangan tahunan yang diperoleh dari Bursa Efek Indonesia. Analisis dilakukan melalui regresi data panel menggunakan perangkat lunak EViews 12, dengan pengujian hipotesis melalui uji t, uji F, serta pengukuran koefisien determinasi (R²). Hasil penelitian menunjukkan bahwa NPM tidak berpengaruh signifikan terhadap pertumbuhan laba, sedangkan TATO, ROA, dan ROE terbukti berpengaruh signifikan. Secara simultan, keempat variabel independen berpengaruh signifikan dengan daya jelaskan yang cukup kuat, sehingga efisiensi pemanfaatan aset dan modal dapat disimpulkan sebagai faktor utama yang mendorong pertumbuhan laba pada subsektor jasa konstruksi dan bangunan di Indonesia
Analyzing The Role of English Pop Culture in Shaping Students' Language Learning Motivation Ketut Purwantoro; Tri Mulyani Wahyuningsih; Budi Santosa
Paradigma: Jurnal Filsafat, Sains, Teknologi, dan Sosial Budaya Vol. 31 No. 2 (2025): Paradigma: Jurnal Filsafat, Sains, Teknologi, dan Sosial Budaya
Publisher : Universitas Insan Budi Utomo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33503/paradigma.v31i2.1799

Abstract

This study aims to analyze the role of English-language pop culture in shaping the motivation to learn English in students. Pop culture, which includes music, movies, television series, and social media, is part of popular culture that is growing rapidly and influencing the lifestyles and habits of the younger generation (Storey, 2018). Using qualitative methods through in-depth observation and interviews with high school students, the study found that exposure to British pop culture increased students' interest in learning the language. However, problems were also found in the learning environment such as the lack of integration of popular media in teaching materials and limited support from teaching staff. The main objective of this study is to understand how elements of pop culture can be used positively in supporting the language learning process. The results of the study show that a contextual approach based on students' interests can be an effective strategy to increase motivation to learn languages.
Respons Pertumbuhan dan Hasil Cabai (Capsicum annuum L.) terhadap Dosis NPK dan Inokulasi Fungi Mikoriza Arbuskular Desi Ratna Sari; M.Amri; Budi Santosa
Jurnal Riset Rumpun Ilmu Tanaman Vol. 4 No. 2 (2025): Oktober : JURRIT: Jurnal Riset Rumpun Ilmu Tanaman
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrit.v4i2.8112

Abstract

Arbuscular Mycorrhizal Fungi (AMF) are biological agents that play an important role in increasing the efficiency of nutrient uptake and plant tolerance to abiotic stress, especially in acidic soils such as ultisols. This study aims to analyze the growth and yield responses of chili (Capsicum annuum L.) to the combination of NPK fertilizer doses and AMF inoculation. The study was conducted in Sungai Talang, Gadut, Agam Regency, from June to October 2025 using a Factorial Completely Randomized Design with two factors, namely AMF inoculation (without AMF, Glomus sp., and Rhizophagus sp.) and NPK fertilizer doses (100%, 75%, 50%, and 25% of the recommendation). The results showed a significant interaction between AMF inoculation and NPK doses on plant height, dry weight, flowering time, and fruit yield per plant. Glomus sp. inoculation with a 50% NPK fertilizer dose resulted in the highest growth and yield, equivalent to the 100% NPK treatment without AMF. The integration of AMF with a 50% reduction in NPK dosage has been shown to maintain crop productivity. This strategy can serve as a basis for developing a sustainable agricultural system based on nutrient efficiency and soil microbial balance.
Karawitan Music Art in Shaping the Self-Esteem of Blind Sensory Disability Budi Santosa; Revy Anindyta Dwi Astuti; Alfin Miftahul Khairi
ALADALAH: Jurnal Politik, Sosial, Hukum dan Humaniora Vol. 3 No. 4 (2025): ALADALAH: Jurnal Politik, Sosial, Hukum dan Humaniora
Publisher : Sekolah Tinggi Ilmu Syariah Nurul Qarnain Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59246/aladalah.v4i1.633

Abstract

Musical art is a bridge for visually impaired people to show themselves and appreciate their own abilities. This research aims to describe the formation of self-esteem in people with visual and sensory disabilities through the art of musical music. The method used is qualitative, using a phenomenological approach. The results of this study indicate that the values contained in karawitan, namely the values of togetherness (cooperation), leadership, responsibility, leadership, love of culture, discipline, and religion, have an impact on four aspects of self-esteem: power, significance, benevolence, and expertise. The self-esteem possessed by beneficiaries through the art of karawitan music is known to be positive, as shown by the karawitan values they have that can form all four aspects.
Resource-constrained project scheduling with ant colony optimization algorithm Niken A Savitri; I Nyoman Pujawan; Budi Santosa
Journal of Civil Engineering Vol. 35 No. 2 (2020)
Publisher : Institut Teknologi Sepuluh Nopember (ITS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20861206.v35i2.7412

Abstract

Resource allocation commonly becomes one of the critical problems in project scheduling. This issue usually occursbecause project managers estimate the schedule of activities and network time without considering resource availability.Resource-Constrained Project Scheduling Problem (RCPSP) links to the allocation of resources or set of resources into certainactivities in order to accomplish particular objectives. Various approaches have been performed to overcome RCPSP, includingthe heuristic approach. In this research, Ant Colony Algorithm is used to solve RCPSP. There are 11 examples of projects beinginvestigated with dissimilarity in-network and several activities. The implementation of the Ant Colony Algorithm resulted inthe percentage of a near-optimal solution of 63.64%. Besides, the duration obtained from the algorithm above the manualscheduling (assumed optimal) was only 4.29%. Sensitivity analysis was performed to understand how substantially the changesof ACO parameters influenced the result obtained from the algorithm. Based on the result, it could be concluded that theparameters of ACO have no significant effect to project duration.
Co-Authors Abshar Ramadhanny Subhan Ade Lia D. Safitri ade rahmawati Afrinaldi Afrinaldi Agus Alex Yanuar Agustin Rahmawati Ahmad Fauzan Abdurrahman Ahmad Yazid Lubis Aisyah Aji Sukarno Alfi Rahmi Alfita Ayu Irmawati Ali Ridho Barakbah Andika Arbi Rayhansyah Andri Sukeksi Anita Anita Annisa Nurul Hikmah Antoni Antoni Ari Yanuar Ridwan Aris Budi Setyawan Azzati Nur Laili Bagus Nurcahyo Bambang Utoyo Cakti Indra Gunawan Dassaad, Dassaad Desi Ratna Sari Didik Sumanto Ditiya Himawati Donata S. Pandin Dwi Aries Himawanto Dwi Sulistyoningsih Dyah Palupi Eka Puji Hastuti Eri Yusnita Arvianti Fadhilla Yusri Fasnia Septa Utama Fatwa Tentama Fitriani Nur Damayanti Hafiz Mukaromah Hani Harlan HARYONO Haryono Haryono Haryono Haryono Hengky Novarianto Henna Ria Sunoko Herlisa Anggraini Herminarto Sofyan Hidayani Syam I Nyoman Pujawan I Wayan Arsana Iman Pasu Marganda Hardianto Purba Indah Kumala, Sella Candra Ismail Maskromo Iswantir M Joko Budi Santosa Joko Utomo Ketut Purwantoro Khairi, Alfin Miftahul Lasminiasih Linda Yarni M. Arif M.Amri Maria R Nindita Radyati Martino Wibowo Masnia Mahardi Yanuar MAYA MUSTIKA KARTIKA SARI, MAYA Megandaru Widhi Kawuryan Mei Raharja Meisin Nabilah Meity Aneke Tulalo Meity Aneke Tulalo Meldy Hosang Meutia Srikandi Fitria Muh Ilham Muhammad Evy Prastiyanto Muji Rahayu Nidia Fertisia S Niken A Savitri Niken Anggraini Savitri Nur Cholidah Fitriana Nurdiansyah Rudi NURUL QOMARIYAH Nuryani Nuryani Nuzul Husnah Oksiana Jatiningsih Paranita Asnur Prasetyo Bonifasius Sitanggang Prihandoko Rachmi Ridho Ragil Saptaningtyas Rahmanu Wijaya Rahmi Andayani Ranny Wahyu Ningrat Ratih Juwita Rehulina Apriyanti Revy Anindyta Dwi Astuti Rina Sugiarti Rini Megawati Rino Andias Anugraha Rio Aurachman Risma Widia Ramadhanti Riyanti Riyanti Rizka Nindya Wulandari Rizka Rahmadani Rizki Muti Agustiani Sampara Lukman Sarmini Saskia Dyah Satria Mandala Sid Suntrayuth Sidi Asmadi SITI AISAH Soeharjoto Soeharjoto Sri Astuti Eka Putri Sri Darmawati Sri Nawangsari Stanty Aufia Rachmat Stanty Aufia Rahmat Stefanus Eko Wiratno Steivie Karouw Sudarsono, Bambang Sukarno, Aji Sukmawati Mawardi Sumiyarti Sumiyarti Supriyadi Supriyadi Suyanto Suyanto SUYONO Syawaluddin Syawaluddin Tahta Alfina Tertio Kunto Dewo Tiananda Widyarini Tri Mulyani Wahyuningsih Umar Affandi Veronika Widi Prabawasari Waenah . . Wahyu Prakosa Wahyu Sunan Hidayat Wardoyo Warsono Willy Arafah Wiyono Sutari Yanto Sidik Pratiknyo Yuli Sari Yeni Yulia Rosyada, Fani YULIANUS R. MATANA Zela Ubaidillah