Claim Missing Document
Check
Articles

Penentuan Karakteristik Tanah Desa Ngasem dengan Metode ASTM Safi'i, Annas Dwi; Candra, Agata Iwan; Altara, Jecksindio Elten; Oktaviadi, Mohammad Reza; Dwi K, Mohamad Agus; Mahardika, Rega; Aditia, Trio Syiwa
Jurnal Komposit: Jurnal Ilmu-ilmu Teknik Sipil Vol. 7 No. 1 (2023)
Publisher : Universitas Ibn Khaldun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/komposit.v7i1.9196

Abstract

Abstract: Soil is an important part of a sub-building structure, soil characteristics need to be considered in the initial planning of a construction, in order to achieve stability and security for the building above it. With different soil conditions, as is the case with the soil in Ngasem village which has low carrying capacity, it is necessary to know which structure meets the requirements for the soil conditions in Ngasem. To find out the characteristics of the soil is done by testing in the laboratory, namely testing the physical and mechanical properties. Testing the physical properties of the soil is testing the water content (Wc), specific gravity (Gs), Atterberg limits and soil unit weight (γ). Mechanical testing with proctor test and direct shear strength. The method used is an experimental method by taking soil samples at a depth of ± 80 cm and conducting research tests in the Kadiri University laboratory. So that the results of soil classification with the SW-SM code are obtained which are classified as well-graded sandy soils with silt mixtures based on USCS and classified as (A-1-b) according to the AASHTO classification system. The Atterberg Limit of Low Plasticity (clay low plasticity) with a Plastic Index Value of 3.243 which is classified as Slightly Plastic, a shear angle value of 38.748° with a cohesion value of 1.914, a maximum dry unit weight value of 1.77 gr/cm3 , and an optimum moisture content of 14.44 . So that with this study, the community is expected to choose and adjust the type and quality of the structure of building materials in accordance with the state of the land. Keywords: Soil properties, Compaction, Shear Test, Liquid Limit, Plastic Limit
The Optimum Vibration of the Compressive Strength of Concrete Specimen Karisma, Dwifi Aprillia; Candra, Agata Iwan; Ali, Mahardi Kamalika Khusna; Sari, Tiara Sherlyta; Pertiwi, Sheila Ananda Putri
INERSIA lnformasi dan Ekspose Hasil Riset Teknik Sipil dan Arsitektur Vol. 18 No. 2 (2022): December
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v18i2.54522

Abstract

Concrete is the primary material in construction, so it needs further research to get good quality concrete. The quality and durability of concrete are influenced by the amount and shape of the air cavity inside the concrete. With vibrating, the air that is inside the concrete will be lost. The benefits of vibration will only be achieved if planned and implemented with a suitable method. With proper vibration, the air in the concrete will come out and make porous concrete. Reduction or removal of air cavities will make concrete mixes strong with low permeability, increasing the durability of concrete. This study aims to determine the optimum strong vibrating on the compressive strength of Fc' 21,7 Mpa concrete. Vibrating will be performed on cylinder concrete samples with a duration time of 3 minutes and with different variations in acceleration 160 m/s2, 170 m/s2, 180 m/s2, 190 m/s2, 200 m/s2, variation velocity 140 mm/s, 150 mm/s, 160 mm/s, 170 mm/s, 180 mm/s, displacement variation 600 mm, 800 mm, 1000 mm, 1200 mm, 1500 mm. Each variation consists of 7 concrete samples. These tests were performed with methods of external vibrating by using MBT Vibrating table CO-410 in fresh concrete. Compressive strength testing is carried out at 28 days. This study shows that the optimum strong vibrating with acceleration 180 m/s2, velocity 160 mm/s, and displacement 1000 mm with the resulting compressive strength is Fc' 23.06 MPa. So that knowing the optimum vibration strength can be the basis for the implementation of vibration to get the planned concrete quality.
Consistency of Compressive Strength in Concrete with 10% Rice Husk Ash Substitution Alfaridh Pasya, Salman; Bima Mahardana, Zendy; Mustofa, Imam; Iwan Candra, Agata
UKaRsT Vol. 9 No. 1 (2025): APRIL
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/ukarst.v9i1.6583

Abstract

Using rice husk ash (RHA) in concrete technology represents a significant innovation in promoting sustainability. The pozzolanic properties of RHA enhance concrete quality through microstructural refinement while mitigating environmental impacts. However, replacing 10% of cement with RHA has inconsistent effects on compressive strength. Such variability may limit the broader application of RHA in structural concrete due to uncertainties in performance prediction, quality assurance, and design safety. While some studies report strength improvements, others note reductions often attributed to limited samples size, material inconsistencies, and variations in mixing or curing processes. This study aims to statistically validate the consistency of compressive strength in concrete with 10% RHA substitution by increasing the sample size and controlling key variables. Nine specimens per test condition were evaluated using a water-cement ratio of 0.53, submersion curing and ASTM C39 testing standards. Compressive strength assessment was conducted at 7 days. The result show a 7.54% increase in compressive strength, from 22.71 MPa to 24.42 MPa, with a coefficient of variation (CV) of 2.26%, well below the 10% threshold. In contrast, earlier studies with smaller sample sizes reported CVs as high as 42.65%, indicating greater statistical variability. This improvement is attributed to the increased sample size, material quality control, and uniform mixing, which ensured homogeneous RHA distribution and optimized pozzolanic reactions. By applying a controlled-variable approach and increasing the sample size, this study addresses prior inconsistencies and reinforces the validity of RHA as a viable cement substitute in concrete.
Statistical Validation of 2% Lignosulfonate as a Sustainable Stabilizer for Expansive Clay Rivianto, Arif; Candra, Agata Iwan; Nursandah, Fauzie; Mustofa, Imam
UKaRsT Vol. 9 No. 1 (2025): APRIL
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/ukarst.v9i1.6594

Abstract

Expansive clay soils undergo volumetric changes due to fluctuations in moisture content, which can cause structural damage to foundations, pavements, and embankments. Traditional stabilization methods, such as cement and lime, are effective but have a significant environmental impact, highlighting the need for more environmentally friendly alternatives. Lignosulfonate (LS), an organic stabilizer derived from industrial by-products, offers a more sustainable approach to improving soil strength and stability. This study evaluates the effect of 2% lignosulfonate on the unconfined compressive strength (UCS) of expansive clays. The research method involved mixing LS at 2% of the dry weight of the soil into the expansive clay (CL-ML) and conducting UCS tests on three untreated (control) samples and six treated samples. Statistical analysis was used to assess the significance of the differences between the two groups. Results show that the UCS increased from 236.29 kPa in the control group to 291.49 kPa in the treated group, reflecting a 23.37% improvement. Poisson's ratio decreased from 0.300 to 0.200, indicating reduced lateral deformation and enhanced soil stiffness, which improves the bearing capacity and stability of structures built on it. The UCS values ​​were observed to be consistent supported by low standard deviation. The study highlights the critical role of adequate sample replication and control over operational variables such as moisture content, compaction, and LS dispersion to ensure reliable and reproducible stabilization outcomes. This study strengthens the empirical basis for the application of LS as a sustainable and environmentally friendly stabilizer for expansive clays.
Effect of Variations in Water Addition On Maximum Dry Weight in Clay Soil Compaction Rina Dwi Fatika; Agata Iwan Candra; Mahardi Kamalika Khusna Ali
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 10 No 2 (2025): SEPTEMBER
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v10i2.1397

Abstract

Soil is a crucial element in construction, serving as the foundation for structural support. Soil compaction is one of the primary methods to enhance soil stability, especially for clay soil, which expands and shrinks due to changes in moisture content. This study aims to analyze the effect of water content variation on the maximum dry unit weight in clay soil compaction. The experimental testing was conducted in the Civil Engineering Laboratory of Kadiri University using the TS-365 Automatic Standard Proctor machine. The water content variations used were 15%, 18%, 20%, 23%, and 26%. The results showed that the optimum moisture content for achieving the maximum dry unit weight was 23%, with a maximum dry unit weight of 1,743 g/cm³. Increasing water content up to the optimum point increases soil density, but excess water reduces the dry unit weight due to particle separation. This research contributes to optimizes clay soil compaction for more stable and sustainable construction. By determining the optimum moisture content, the compaction process can be conducted more efficiently, minimizing the risk of soil volume changes and improving soil-bearing capacity for long-term infrastructure development.
Jumlah Lintasan Meningkatkan Rasio MDD Pemadatan Tanah Husna, Nadiya; Candra, Agata Iwan; Ali, Mahardi Kamalika Khusna
Blend Sains Jurnal Teknik Vol. 4 No. 2 (2025): Edisi Oktober
Publisher : Ilmu Bersama Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56211/blendsains.v4i2.1035

Abstract

Rendahnya kualitas pemadatan tanah menjadi salah satu penyebab utama kerusakan dini infrastruktur jalan, terutama karena tidak tercapainya densitas kering lapangan sesuai spesifikasi. Penelitian ini bertujuan untuk mengevaluasi pengaruh jumlah lintasan pemadatan terhadap nilai rasio Maximum Dry Density (MDD) sebagai indikator keberhasilan pemadatan tanah. Pengujian dilakukan pada proyek Jalan Tol Probolinggo-Banyuwangi Paket 3 di STA 31+166, membandingkan kedua perlakuan tersebut yaitu lintasan 8 dan 10 lintasan dengan menggunakan alat berat Vibro Roller. Data ANOVA satu arah pada tingkat signifikansi < 0,05 menunjukkan bahwa jumlah lintasan pemadatan berpengaruh signifikan terhadap rasio MDD (p = 0,038). Peningkatan lintasan menghasilkan distribusi energi yang lebih merata dan mampu meningkatkan berat isi kering lapangan. Temuan ini dapat digunakan sebagai acuan evaluasi dalam pengendalian mutu berdasarkan jumlah lintasan pemadatan yang tersedia dalam laporan proyek harian, serta memperkuat pemahaman teknis tentang hubungan distribusi energi pemadatan dengan kepadatan lapangan yang optimal.
Mengklasifikasikan Tanah Lempung Menggunakan USCS Candra, Agata Iwan; Putri, Yuzi Melia Adi; Wardani, Onie; Zakiya, Zaizafun; Safi’i, Annas Dwi
CIVED Vol. 9 No. 3 (2022): September 2022
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v9i3.353112

Abstract

Tanah lempung merupakan salah satu jenis tanah yang terdiri dari butiran yang sangat kecil dan berwarna coklat. Untuk mengetahui identitas tanah lempung sangat diperlukan pengujian agar dapat mengklasifikasikannya. Metode yang digunakan adalah metode USCS. Sampel tanah yang diambil berada di Desa Pojok, Kota Kediri. Pengujian tersebut berdasarkan uji Gradasi Ayakan, Liquid Limit, dan Plastis Limit. Dalam pengujian gradasi ayakan ditemukan koefisien keseragaman(Cu) sebesar 3 dan koefisien gradasi(Cc) sebesar 0,96. Pengujian batas cair menghasilkan kadar air 36,556% merupakan kriteria sedang. Batas plastis menghasilkan kadar air 24,15% merupakan kriteria sedang. Sedangkan pengujian indeks plastisitas menghasilkan 12,41%. Berdasarkan pengujian ini, sampel tanah tergolong kelompok SP(POORLY GRADED SAND) yaitu kelompok gravel yang bergradasi baik dengan penggolongan Cu ˂6 dan 1 ˃Cc ˃3. Karakteristik agregat tanah lempung yang ada di Desa Pojok memiliki sifat fisik berwarna coklat, teksturnya halus dan lengket, menunjukkan sifat-sifat plastis dan juga memiliki sifat kohesi. Agregat tanah lempung yang ada di Desa Pojok ini pun sudah memenuhi spesifikasi untuk penyerapan air agregat kasar, penyerapan air agregat halus, keausan agregat kasar, dan agregat alamnya juga sudah memenuhi spesifikasi. Selain itu, manfaat dari pengujian untuk mengklasifikasikan jenis tanah ini dapat digunakan sebagai dasar untuk pengujian tanah selanjutnya.
Mencegah Kelongsoran dengan Meningkatkan Angka Keamanan Lereng Rahmawati, Apriliya Laily; Candra, Agata Iwan; Sefiyanti, Redyka; Husna, Nadiya; Febrian, Bagas
CIVED Vol. 10 No. 2 (2023): June 2023
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v10i2.402

Abstract

Kecamatan Pujon merupakan daerah dengan intensitas bencana longsor cukup tinggi. Tanah longsor terjadi di Dusun Sukomulyo, Kabupaten Malang dipengaruhi oleh minimumnya vegetasi berakar dan tingginya intensitas curah hujan yang berdampak negatif bagi masyarakat sekitar. Tujuan penelitian ini untuk menganalisis kestabilan lereng dengan dilakukan pengujian untuk menentukan nilai atterberg limit, gradasi ayakan, uji kuat geser, analisis stabilitas lereng dan optimalisasi sudut kemiringan sebagai upaya penanganan risiko bencana tanah longsor. Penelitian ini menggunakan metode kuantitatif dengan pengujian di lapangan dan di laboratorium. Hasil penelitian menunjukkan bahwa tipe longsor daerah penelitian yaitu translasi slide. Didapatkan nilai plastic index 26,22 % dengan jenis tanah Sand Poorly Graded. Hasil Pengujian Geser menghasilkan sudut geser 3,12 dan kohesi 7,68 pada keadaan basah. Hal tersebut diketahui Nilai Fs<1 menunjukkan lereng kurang stabil, dengan cara melakukan pemotongan atau pelandaian lereng menjadi 16 derajat maka nilai factor of safety 1,04 FS >1 dinyatakan stabil. Penelitian ini dilakukan sebagai dasar awal dalam merencanakan kemiringan lereng yang stabil, sehingga terjadinya kelongsoran bisa diminimalkan.
Optimalisasi Kuat Tekan Beton Menggunakan Fly Ash dan Superplasticizer Rahmawaty, Fitry; Candra, Agata Iwan; Hidiyati, Evita Fitrianis; Cahyono, Andri Dwi; Mahardana, Zendy Bima; Karisma, Dwifi Aprillia; Ali, Mahardi Kamalika Khusna; Azhari, Faiz Muhammad
CIVED Vol. 10 No. 2 (2023): June 2023
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v10i2.424

Abstract

Perekonomian Kota kediri yang meningkat menjadikan masyarakat antusias dalam berinvestasi di dunia perumahan. Dengan data dari Kepala Dinas Perumahan dan Kawasan Permukiman mengungkapkan bahwa Pemkot kediri juga telah menetapkan Rencana Detail Tata Ruang, dimana Sebagian wilayahnya diperuntukkan sebagai Kawasan perumahan dan pemukiman. Namun, masyarakat banyak beralih ke rumah bertingkat karena mampu meminimalisir lahan dan mendapatkan banyak ruang untuk anggota keluarga. Selain itu, rumah bertingkat harus didesain kokoh dan kuat agar mampu menopang beban baik beban mati maupun beban hidup dan beban-beban yang lain. Salah satu upaya memperkokoh bangunan dengan memperkuat struktur bangunannya seperti kolom dan balok. Penelitian ini bertujuan untuk meningkatkan kuat tekan beton tekan dengan penambahan fly ash (FA) dan superplasticizer (SP) dengan harapan dapat mengurangi penggunaan semen dengan mutu yang sama. Metode penelitian yang digunakan dalam penelitian ini adalah metode eksperimen dengan melakukan pengujian langsung di Laboratorium Teknik Universitas Sipil Kadiri yang mengacu pada SNI. Benda uji yang digunakan berbentuk silinder dengan ukuran 15 cm x 30 cm dengan lama pengerasan 3 hari, 7 hari, 14 hari dan 28 hari dengan kuat tekan rencana fc' 21,7 MPa. Hasil penambahan fly ash dan Superplastizer didapatkan nilai slump untuk variasi FA0%, FA4%+SP0.5%, FA8%+SP0.5% berturut-turut 13 cm, 8 cm, 6 cm dan 6 cm. Hasil penelitian pada variasi FA0%, FA4%+SP0.5%, FA8%+SP0.5%, menunjukkan kuat tekan rata-rata tertinggi terdapat pada variasi FA 8% + SP 0.5% yaitu sebesar 29.8 Mpa. Hasil penelitian menunjukan pengujian kuat tekan beton dengan penambahan fly ash dan superplasticizer mendapatkan hasil kuat tekan terbesar pada campuran beton variasi fly ash 8% dan SP 0.5 % dengan umur beton 28 hari sebesar 32,8 Mpa setara dengan K-300. Hasil tersebut dapat diaplikasikan pada pekerjanaan Kolom dan Balok pada bangunan bertingkat.
Experimental Study of Soil Compaction with Proctor Standard Test Equipment Fatkunada, Nur Addin; Candra, Agata Iwan; Setiawan, Dodi
CIVED Vol. 11 No. 2 (2024): June 2024
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v11i2.550

Abstract

Soil is the surface layer of the earth which consists of minerals, organic materials, air, living things. Clay soil is one type of soil that is important in determining the bearing capacity of subgrade required for construction. The bearing capacity of the soil is obtained by compacting it, using the TS-365 Automatic Standard Proctor. Soil compaction is the process of removing air from the pores of the soil, and is effective for improving soil properties in order to increase the density (density) of the soil so that shear strength increases, soil settlement decreases, and soil permeability decreases. The standard proctor test uses 5 separate soil samples weighing 2 kg, with a mixture of 16%, 19%, 22%, 25% and 28% air respectively. The test results show that the soil obtained from the Pojok sub-district area. Mojoroto, East Java obtained the results of soil compaction data using a standard proctor test, it was obtained that the optimum dry volume weight of the soil was 1,630 gr/cm3 and the optimum water content was 32%. So that the results of soil testing in the laboratory can be used as a reference for controlling soil compaction in construction.
Co-Authors Abidatul Izzah Aditia, Trio Syiwa Aditiya Yayang Nurkafi Afif Nur Rahmadi Afif Nur Rahmadi, Afif Nur Afriyan Arsya Sabilla Agung Guncoro Ahmad Ridwan Ahmad Ridwan Ahmad Ridwan Ahmad Ridwan Ahmad Ridwan Ahmada Khotibul Umam Aldri Frinaldi Alfaridh Pasya, Salman Alfina Iskindaria Altara, Jecksindio Elten Alvin Hidayat Amanda Rizky F Anasrudin Yusuf Andri Dwi Cahyono Annas Dwi Safi&#039;i Annas Dwi Safi'i April Gunarto April Gunarto April Gunarto Ardinata Ardinata Ariadi Santoso Ariadi Santoso, Ariadi Arif Fathur Rohman Arif Rivianto Arif Rivianto Arthur Daniel Limantara, Arthur Daniel Ashabul Yamin Bagas Naga Pratala Haryadi Bella Amiria Rahmahima Bima Mahardana, Zendy Budi Heryanto Budi Winarno Budi Winarno Candra Yulianto Dicko Mahendra Dikhy Ridho Laksono Dodi Setiawan Dwi Hartanto Dwi K, Mohamad Agus Dwifi Aprilia Karisma Dwifi Aprilia Kharisma Dwifi Aprillia Karisma Edy Gardjito, Edy Eko Andi Suryo Eko Siswanto Eko Siswanto Eko Winarti Elsa Rizqi Purwanti Erwanda, Niko Andika Evita Fitrianis Hidiyati Faiz Muhammad Azhari Fajar Romadhon Fajar Romadhon Fandra Andriansyah P Farikhatul Mufaidah Fathurrohman, Nadi Rheiza Fatkunada, Nur Addin Fauzie Nursandah Fauzie Nursandah Fauzy, Muhammad Rosyid Abdul Rohman Febrian, Bagas Fianca Nimas Yamada Puteri Fidyan Mamlu&#039;atul Husna Fitry Rahmawaty Fransesco Indra Permana Friska Windi Meira Aisyah Galang Santoso Hadi Mashuri Hanafi, Mohammad Abdul Aziz Hendy Hendy Hendy Henny Prasetiyo Heri Wahyudiono Herlan Pratikto Herlangga Duta Pramudya Hermawan Hermawan Heru, Rahmat Hidiyati, Evita Fitrianis Hikmatul Lailiya Husna, Nadiya Ibnu Gunawan Ilham Rizqi Nurdian Putra Imam Mustofa Imam Safi'i Indriyasari, Arini Jarmiati Pinkan Ladiyana Kavindo Yugiswara Hutama Khoirun Nisa' Ki Catur Budi Ki Catur Budi Ki Catur Budi S Krisdiyanto Nugroho Leo Agusta Utama Lin Sintyawati M Ilham Fauzil Fahmi Mahardi Kamalika Khusna Ali Mahardika Kamalika Khusna Ali Mahardika, Rega Maharnindra, Dery Mahendra, Prendy Eliya Malik Ibrahim Ma’rifatul Mumayyizah Meylinda Vricilia Mishbahul Aziz Moch Aminuddin Moch. Risjad Aldiansyah Mochamad Rizki Mochammad Danara Indra Pradigta Moh. Idham Cholid Moh. Ilham Farihi Mohamad Agus Fajar Wibowo Mohammad Roziq Muchammad Sutikno Mudinillah, Adam Muhammad Bahrudin Muhammad Feggi Saputra Muhammad Heri Nastotok Muhammad Heri Nastotok Muhammad Lutfi Amzari Muhammad Nasih Al hasbi Muhammad Ridho Muhammad Sulton Bahrudin Mukhammad Ibnul Mubarok Munawir, As'ad Nisa', Khoirun Nur Addin Fatkunada Nursandah, Fauzie Ogest Tegar Widyakrama Oktaviadi, Mohammad Reza Onie Wardani Pasya, Salman Alfaridh Pertiwi, Sheila Ananda Putri Putri, Yuzi Melia Adi Qalby, Atsfiela Dzulkhan Rahadi Reswara Rahmat Heru Rahmat Heru Rahmat Heru Supriyo Rahmat Heru Supriyo Rahmawati, Apriliya Laily Ramadhan Mahendra Ravie Setya Putra Rayhansah, Rina Rebut Rekso Ajiono Ricky Putra Ardianto Rikha Wirda Izzati Rina Dwi Fatika Rina Dwi Fatika Rivianto, Arif Rohman Fauzy, Muhammad Rosyid Abdul Rohmat Ilyas Kurniawan Rohmatin, Nur Roid Ahmad Faizin Romadhon Romadhon Romadhon, Fajar Rosyta, Heni Agnes Safi'i, Annas Dwi Safi'i, Imam Safi’i, Annas Dwi Saiful Muslimin Sari, Tiara Sherlyta Satria Arung Bangun Samodera Satria Febby Romaadhoni Sefiyanti, Redyka Sheila Ananda Putri Pertiwi Sigit Winarto Sigit Winarto Sigit Winarto Sigit Winarto Sony Santoso Sony Susanto Sri Wiwoho Mudjanarko, Sri Wiwoho Sudjati Sudjati Sudjati Sudjati Sugeng Yani Widodo Sulik Anam Sulik Anam Sulik Anam Sumargono Sumargono Sumargono Sumargono Sumargono Supriadi Supriadi Supriono Supriono Suwarno Suwarno Tiara Sherlyta Sari Tiok Kresna Aji TOBING, MEYRINDA Two Puji Guntur A Uminarsih Uminarsih Veithzal Rivai Zainal Vella Maulina Kris Putri Wahyu Agung Nugroho Wardani, Onie Widodo Restu Putra Widodo, Silvi Rushanti winarti, eko Wisnu Arganata Yosef Cahyo Yosef Cahyo Yosef Cahyo S Yosef Cahyo S.P Yosef Cahyo Setianto Poernomo Yosef Cahyo Setianto Poernomo Yosef Cahyo Setianto Poernomo Yosef Cahyo Setianto Poernomo Yosef Cahyo Setianto Poernomo Yosef Cahyo Setianto Poernomo Yosef Cahyo Setianto Purnomo Yulvi Zaika Yusiane Saraswati Yuzi Melia Adi Putri Zaizafun Zakiya Zaizafun Zakiya Zakiya, Zaizafun Zendy Bima Mahardana