Article Per Year (5 Year)
p-Index From 2021 - 2026
5.917
P-Index
This Author published in this journals
All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management MEDIA KOMUNIKASI TEKNIK SIPIL Teknik Sipil dan Arsitektur JURNAL TEKNOLOGI LINGKUNGAN Jurnal Pariwisata Pesona Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Jurnal Rekayasa Jurnal Rekayasa Sipil dan Desain Teras Jurnal Khasanah Ilmu - Jurnal Pariwisata Dan Budaya Jurnal Aplikasi Teknik Sipil Spatial : Wahana Komunikasi dan Informasi Geografi Journal of Engineering and Scientific Research (JESR) Jurnal Teknik Sipil dan Arsitektur Jurnal Industri Pariwisata Journal of Innovation and Technology Prosiding Seminar Nasional Hasil Penelitian Sains, Teknik dan Aplikasi Industri Fakultas Teknik Universitas Lampung Venus: Jurnal Publikasi Rumpun Ilmu Teknik Jurnal Teknik Sipil J-Sil (Jurnal Teknik Sipil dan Lingkungan) Jurnal Sinergi Jurnal Teknik Sipil
Ahmad Herison
Universitas Lampung
Religion Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Medicine & Pharmacology Social Sciences Transportation Other

Published : 52 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 52 Documents
Search

 1   2   3   4   5 
PENINJAUAN KAWASAN TERUMBU KARANG DAN INFRASTRUKTUR DI PULAU KELAGIAN BESAR SEBAGAI PENUNJANG EKOWISATA BAHARI Azzahra, Ardhita Rahma; Herison, Ahmad; Kusuma, Anma Hari; Romdania, Yuda
Jurnal Industri Parawisata Vol 7 No 2 (2025): Jurnal Industri Pariwisata JANUARY 2025
Publisher : Universitas Sahid

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36441/pariwisata.v7i2.2279

Abstract

Potensi wisata yang ada di setiap daerah memiliki peluang besar untuk dikembangkan, salah satunya Pulau Kelagian Besar yang letaknya berdekatan dengan Pulau Pahawang mempunyai terumbu karang yang potensial untuk kegiatan ekowisata. Tujuan penelitian adalah untuk mengkaji lebih lanjut kesesuaian serta daya dukung kawasan wisata tersebut yang disertai pula dengan peninjauan infrastruktur. Penelitian ini menggunakan analisis Indeks Kesesuaian Wisata, Daya Dukung Kawasan & peninjauan infrastruktur menggunakan parameter 3A sebagai acuan untuk merencanakan pembangunan infrastruktur pendukung. Dari hasil analisis diperoleh kesesuaian wisata snorkeling dan diving pada stasiun 3 adalah 2,265 dan 2,475 . Luas area pemanfaatan pada stasiun ini seluas 2,71 ha untuk kegiatan snorkeling dan 11,3 ha untuk diving. peninjuan menemukan bahwa keadaan infrastruktur pendukung yang ada di pulau sudah cukup baik, meski demikian pengembangan lanjutan masih perlu dilakukan. Kesimpulan adalah pada stasiun 3 memiliki kategori kesesuaian S2 (sesuai) dengan daya tampung wistatawan untuk ekowisata snorkeling sebanyak 109 orang/hari dan diving sebanyak 452 orang/hari, saran infrastruktur pendukung yang dapat dibangun sebagai penunjang ekowisata pulau antara lain, gazebo, coffee shop dan fish market.
Analisis Implementasi Metode Petak Kecil terhadap Pendugaan laju Erosi Lahan Non Vegetasi Sudewa, Wijoyo Mensen; Romdania, Yuda; Herison, Ahmad; Purwadi, Ofik Taufik
Jurnal Teknik Sipil dan Lingkungan Vol. 9 No. 2: Oktober 2024
Publisher : Departemen Teknik Sipil dan Lingkungan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsil.9.2.303-314

Abstract

Pengelolaan lahan yang tidak tepat kemungkinan besar akan menyebabkan kerusakan yang lebih serius terhadap lahan dan lingkungan, seperti longsor, erosi, sedimentasi, banjir ,dan kekeringan. Erosi tanah ini hasil proses alami yang terjadi karena angin kencang, hujan deras, dan air mengalir. Tujuan penelitian adalah analisis variasi intensitas hujan pada lahan tanpa vegetasi yang mempengaruhi laju erosi dan volume air limpasan serta memperkirakan besarnya laju erosi di waktu mendatang. Metode yang digunakan merupakan metode petak kecil dengan model petak yang berdimensi dengan ukuran panjang 4 m dan lebar 2 m. Dalam analisis hidrologi menggunakan metode aritmatika dan metode mononobe. Dengan variasi intensitas hujan 0,75 liter/menit, 1,00 liter/menit, 1,25 liter/menit, 1,50 liter/menit, dan 1,75 liter/menit didapatkan nilai volume air limpasan terkecil 6,44 liter dan terbesar 10,43 liter. Hal ini menunjukkan lebih banyak air yang melimpas dari pada yang meresap, sehingga energi kinetik air mengalir di permukaan meningkat menyebabkan tanah permukaan tergerus. Kemudian nilai laju erosi mengalami peningkatan seiring kenaikan intensitas hujan dan menghasilkan trendline hubungan antara intensitas hujan dan laju erosi yaitu y = 0,3827x2 + 0,0531x - 0,1828 dimana x adalah variabel intensitas hujan dan y adalah hasil laju erosi. Berdasarkan hasil perhitungan laju erosi dengan nilai intensitas hujan dalam kala ulang 2, 5, 10, 25, 50, dan 100 tahun didapatkan nilai laju erosi terbesar pada kala ulang 100 tahun sebesar 15,6186 ton/ha/tahun. Kesimpulannya adalah intensitas hujan yang tinggi meningkatkan volume air limpasan dan laju erosi dengan perbandingan kuadratik serta perkiraan laju erosi di lokasi penelitian tergolong sangat ringan hingga ringan.
Analisis Permodelan Laju Kehilangan Tanah Akibat Variasi Hujan Menggunakan Rainfall Simulator (Uji Eksperimental Laboratorium) Dewi, Tiara Servita; Romdania, Yuda; Herison, Ahmad; Ashruri, Ashruri
Jurnal Teknik Sipil Vol 21 No 2 (2025): Jurnal Teknik Sipil
Publisher : Universitas Kristen Maranatha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28932/jts.v21i2.9078

Abstract

Soil erosion affects the quality level of soil carrying capacity. This happened in the TP PKK Collective Garden in Bandar Lampung City, which experienced fertility degradation due to reduced soil nutrient content. The purpose of this study is to analyze the effect of slope variations with variations in rainfall intensity on the magnitude of erosion in non-vegetated soils and to identify control strategies that can be applied. The method used in this study is to use a Rainfall Simulator with variations in the slope and intensity of rain on non-vegetation soils. The results of the calculation of the highest erosion rate of 14.91 tons/ha occurred at (slope of 45% with a rain intensity of 1.75 liters/minute), while the lowest erosion rate of 1.67 tons/ha occurred at (slope of 8% with a rain intensity of 0.75 liters/minute). Statistical analysis showed that the relationship between erosion rate and rainfall intensity and slope had a determination coefficient close to 1, indicating that these variables had a significant influence on erosion rate. The conclusion is that the rate of erosion increases along with the slope and the intensity of rainfall, therefore efforts to reduce erosion by planting plants, planting plant residues, making terraces, and using chemical or natural prepats.
Analisis Stabilitas Breakwater Tenggelam Tipe Batu Pecah Rachmanda, Farhan; Tugiono, Subuh; Zakaria, Ahmad; Herison, Ahmad
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 10 No. 2 (2022): Edisi Juni 2022
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v10i2.2621

Abstract

Untuk mencegah kerusakan atau abrasi yang disebabkan oleh gelombang pada daerah pantai salah satu upaya yang dapat dilakukan adalah dengan membuat suatu bangunan yang mampu meredam energi gelombang sebelum sampai ke daerah pantai yaitu dengan membangun breakwater. Dipilihnya breakwatertenggelam dikarenakan breakwater tenggelam lebih efisien dari segi estetika karena tidak menghilangkan kesan alamiah pada pantai dan cenderung meniru konsep terumbu karang. Pada penelitian ini dilakukan uji pemodelan fisik breakwater tipe batu pecah dengan dimensi model lebar puncak 9,20 cm, tinggi 8,12 cm, kemiringan 1:1,5 dan berat unit armor 14,18 gram serta kedalaman dasar terhadap muka air tenang (d) 14,12 cm dan kedalaman puncak breakwater terhadap muka air tenang (dbw) 6 cm. dengan batas maksimal Hi adalah 7,25 cm, Panjang gelombang (L) 53 cm, dan kecepatan gelombang (C) 94,64 cm/s.Penelitian ini bertujuan untuk mengetahui stabilitas unit lapis lindung breakwater tenggelam tipe batu pecah serta mengetahui karakteristik gelombang yang terjadi pada breakwater tipe batu pecah. Dari hasil pengamatan gelombang pada model breakwater didapatkan tinggi gelombang datang (Hi) rata-rata sebesar 4,53 cmnilai panjang gelombang (L) rata-rata sebesar 65,08 cm, kecepatan (C) rata-rata gelombang sebesar 82,51 cm/s, dan dari hasil penelitian yang dilakukan dapat disimpulkan bahwa breakwater yang digunakan dikatakan layak karena memeiliki persentase kerusakan sebesar 0% dan memiliki nilai KDmaksimum sebesar 1,58 dimana nilai tersebut mendekati nilai angka aman.
Kalibrasi Alat Ukur Sedimen Tersuspensi Berbasis Turbidity Sensor Fakhrizal, Achmad Bagus; Romdania, Yuda; Wahono, Endro Prasetyo; Herison, Ahmad
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 10 No. 4 (2022): Edisi Desember 2022
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v10i4.2857

Abstract

AbstractTurbidimeter is a standard instrument used to determine the level of turbidity of water. However, its use is felt to be less effective and efficient because it is not carried out in running water. Based on this statement, a practical suspended sediment measuring instrument based on a turbidity sensor is needed. Furthermore, to ensure the ability of a measuring instrument, an activity is needed to determine the validity of the conventional instrument reading value. Therefore, this study aims to calibrate the suspended sediment measuring instrument based on the turbidity sensor. The method used is to compare the measurement results of the design instrument against measuring standards that are traceable to international standards. Turbidity measurements were carried out using two devices which were compared at the same time.The results of the calibration show the output pattern with the appropriate level of linearity. The R-squared value which is the correlation coefficient, with R2=0.9667 indicates a good match between the two instruments. The slope gradient of the curve line is 1.1083 which means that the NTU-18 turbiditymeter is well calibrated. The results of the calculation of the unit conversion of NTU and mg/L have the average square of error or a correlation coefficient of R2=0.8984, meaning that both have a good correlation. In conclusion, the measuring instrument is able to operate properly and without problems. The tool manages to provide relative precision and practical response times, so work efficiency can be increased.  Keywords: Turbidity, Calibration, Convertion AbstrakTurbidimeter merupakan instrumen standar yang digunakan untuk menentukan taraf kekeruhan air. Namun penggunaannya dirasa kurang efektif dan efisien karena tidak dilakukan pada air mengalir. Berdasarkan pernyataan tersebut maka dibutuhkan instrumen ukur sedimen tersuspensi yang praktis berbasis turbidity sensor.Selanjutnya untuk memastikan kemampuan suatu alat ukur, maka diperlukanlah suatu aktifitas untuk menentukan keabsahan konvensional nilai pembacaan instrumen. Oleh karena itu, pada penelitian ini bertujuan untuk mengalibrasi alat ukur sedimen tersuspensi berbasis turbidity sensor. Metode yang digunakan pada penelitian ini yaitu dengan cara membandingkan hasil pengukuran alat rancangan terhadap standar ukur yang mampu telusur ke standar internasional. Pengkuran turbiditas dilakukan menggunakan dua alat yang dibandingkan pada waktu yang bersamaan.Hasil kalibrasi alat menujukkan pola output dengan tingkat linieritas yang sesuai. Nilai R-kuadrat yang merupakan koefisien korelasi, dengan R2=0,9667 menunjukkan kecocokan yang baik antara kedua instrumen. Gradien kemiringan garis kurva bernilai 1,1083 memiliki arti bahwa turbiditimeter NTU-18 sudah terkalibrasi dengan baik. Hasil perhitungan konversi satuan NTU dan mg/L memiliki kuadrat kesalahan rata-rata atau koefisien korelasi sebesar R2=0,8984, artinya keduanya memiliki korelasi yang baik. Kesimpulannya alat ukur mampu beroperasi dengan baik dan tanpa masalah. Alat berhasil memberikan presisi relatif dan waktu respons yang praktis, sehingga efisiensi pekerjaan dapat ditingkatkan. Kata Kunci :Turbidity, Kalibrasi, Konversi
Kemampuan Mangrove dalam Menjaga Garis Pantai Arief, Farah Diba; Herison, Ahmad; Zakaria, Ahmad; Romdania, Yuda
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 11 No. 1 (2023): Edisi Maret 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v11i1.3050

Abstract

Mangrove ecosystems are able to maintain the coastline from abrasion and erosion, and are able to withstand strong winds coming from the ocean to land. The purpose of this study is to determine the ability of roots, litter and sedimentation in maintaining the coastline. The methods to be used are quadrat transect, spot check and laboratory tests. The result is that mangrove roots have the greatest damping effectiveness compared to litter and sedimentation, because mangrove roots have a bouncy force and have a dense density. So it can be concluded that the factors in mangroves that can prevent abrasion due to the impact of sea waves are mangrove roots, litter and sediment that can be a natural damper of environmentally friendly beachfront buildings. The thicker the mangrove ecosystem, the greater the ability to dampen waves. Key words : mangroves, coast, waves, abrasion Ekosistem mangrove mampu menjaga garis pantai dari adanya abrasi dan erosi, serta mampu menahan tiupan angin kencang yang datang dari lautan menuju daratan. Tujuan dari penelitian ini adalah mengetahui kemampuan akar, serasah dan sedimentasi dalam menjaga garis pantai. Metode yang akan digunakan yaitu transek kuadrat, spot check serta uji laboratorium. Hasilnya bahwa akar mangrove memiliki keefektifan peredaman terbesar dibandingkan serasah dan sedimentasi, karena akar mangrove memiliki gaya lenting dan memiliki kerapatan jenis yang padat. Sehingga dapat disimpulkan bahwa faktor pada mangrove yang dapat mencegah abrasi akibat hantaman gelombang laut yaitu akar mangrove, serasah dan sedimen yang dapat menjadi peredam alami bangunan tepi pantai yang ramah lingkungan. Semakin tebal ekosistem mangrove, maka akan semakin besar kemampuan meredam gelombang.  Kata kunci : mangrove, pesisir pantai, gelombang, abrasi
Pemetaan Kemiringan Lereng Menggunakan Software Geographic Information System Pada Sub DAS Way Pubian Setyanugraha, Tegar; Romdania, Yuda; Herison, Ahmad; Zakaria, Ahmad
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 11 No. 2 (2023): Edisi Juni 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v11i2.3274

Abstract

Land use utilization in a watershed must pay attention to the slope. The slope that will be analyzed is the slope of the Way Pubian Subwatershed, Way Seputih Watershed, Lampung Province. Over time, population growth will increase in the Way Pubian Subwatershed area resulting in land use change which is an important trigger factor for landslides. Perhaps slope mapping has been done in many places, but for the Way Pubian Subwatershed area it has never been done. So it is important to conduct slope mapping in the Way Pubian Subwatershed. The purpose of the study was to conduct slope mapping and its classification using ArcGIS. Based on the results of the analysis with ArcGIS obtained slope map in Way Pubian Subwatershed with five classifications namely flat (0-8%), ramps (8-15%), rather steep (15-25%), steep (25-45%), and very steep (>45%). Way Pubian Subwatershed has an area of 11,562.8762 Ha where 3,026.7852 Ha (26.1767%) is the classification of 25-45% slope class (Steep) which is the largest compared to the area of other classification classes. In the classification class flat (0-8%), ramps (8-15%) and rather steep (15-25%) do not have too much difference. While the very steep classification class (>45%) is the area with the least area. The conclusion is that the slope map is obtained with the largest classification of slope is in the steep class.
Analisis Indeks Erosivitas Hujan menggunakan Metode Bols dan Utomo (Studi Kasus: Sub DAS Way Pubian, Das Way Seputih, Provinsi Lampung) Agestia, Lady; Romdania, Yuda; Ashruri, Ashruri; Herison, Ahmad
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 11 No. 2 (2023): Edisi Juni 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v11i2.3275

Abstract

Indonesia has a tropical climate which results in high rainfall throughout the year. The high rainfall makes Indonesia prone to erosion. The ability of rainfall to cause erosion is called rainfall erosivity. The study aims to calculate the rainfall erosivity index in the Way Pubian Subwatershed area by comparing the Bols and Utomo methods. The research methods used include; data consistency test, rainfall analysis, and calculation of rainfall erosivity index. Based on several studies on the erosivity index, in the Indonesian region the calculation of the Bols Method erosivity index often gets a higher value than the Utomo Method because the data used for the calculation of the Bols Method requires more data than the Utomo Method which only uses monthly rainfall data. The conclusion is that the Bols Method erosivity index value is 2651.2120 and the Utomo Method is 1008.3435, the Bols Method erosivity index value is higher than the Utomo Method value with an interval of 1642.8685. The use of the Bols equation to calculate the erosivity index value is considered safer to use in estimating the erosion rate. Keywords: Bols, Rainfall Erosivity, Sub Das Way Pubian, Utomo
Perbandingan Metode Penentuan Intensitas Curah Hujan (Studi Kasus: Kawasan Wilayah Sukarame Bandar Lampung) Yanti, Cristi; Herison, Ahmad; Zakaria, Ahmad; Romdania, Yuda
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 11 No. 2 (2023): Edisi Juni 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v11i2.3276

Abstract

One of the main factors causing flooding in an urban area is rainfall intensity. Perhaps this research has been widely discussed in other studies, but this research was conducted in an area with rainfall characteristics that are different from other areas, so this research is expected to provide further information for flood management and water structure design in related areas. The purpose of the research is to obtain and compare rain intensity methods in order to select a method that is suitable for rainfall characteristics in the sukarame area.  The short-term intensity calculation method uses the Mononobe method because this method only requires maximum daily rainfall data. The calculation of rain intensity approach uses Talbot and Sherman methods to find the appropriate rain intensity method. The results showed that high-intensity rain lasts for a short duration. From the comparison results, different rain intensity analysis results were obtained, this may be due to the use of different settings from each method. It is concluded that the Mononobe method with the Sherman equation is most suitable for rainfall characteristics. Key words : Rainfall Intensity, Mononobe, Talbot, Sherman, IDF Curve.
Pemetaan Tata Guna Lahan dengan Metode Supervised Classification Qur'ani, Mutiara Nurul; Romdania, Yuda; Zakaria, Ahmad; Herison, Ahmad
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 11 No. 2 (2023): Edisi Juni 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v11i2.3426

Abstract

Land use is used to determine the effect of community activities on the land use of an area. Currently, the search for land use information can be reviewed periodically with remote sensing technology. The aim of the research is to map land use and provide information to the public regarding the condition of land use in the Way Pubian Sub-watershed area. The method used in processing land mapping data is supervised classification based on the training samples that have been collected. The supervised classification method is available in ArcGIS software. The method of analysis refers to descriptive analysis, by describing the land use maps obtained. The results of the map show that land use in the Way Pubian Sub-watershed consists of ponds of 1.57 Ha with a percentage of land of 0.01%, forest land of 6719.14 Ha of a percentage of 57.83%, open land area of 122.58 Ha of percentage 1.06%, settlements 823.2 Ha a percentage of 7.08%, Plantations 2783.11 Ha a percentage of 23.95% and paddy fields 1169.34 Ha with a land percentage of 10.06%. Compared to Landsat imagery, map making is more effective if using high-resolution imagery, then Google Earth imagery is used as data processing material. The conclusion obtained by processing data with ArcGIS software helps in mapping land use, obtaining the area and percentage of land use. The percentage results show that the largest land use is forest land and the smallest land area is pond land.Keywords: map, land use, watershed, GIS, imagery
Co-Authors Achmad Paksi Firdaus Agestia, Lady Ahmad Zakaria ahmad zakaria Ahmad Zakaria Ahmad Zakaria Amanda, Tiara Maelta amelia sukma cindy Amril Maruf Siregar Amril Ma’ruf Siregar Anma Hari Kusuma, Anma Hari Arief, Farah Diba Ariestina Fanani Ashruri Ashruri, Ashruri Ashruri, A Azzahra, Ardhita Rahma Azzahra, Iftasya Shafa Cesarani, Anisa cindy, amelia sukma Dewi, Tiara Servita Dipo Akbar Doni Pramanda Dyah Indriana K Dyah Indriana Kusumastuti Dyah Kusumastuti eko widarsono Elza Novilyansa Elza Novilyansa Endro P Wahyono Endro Prasetyo Wahono Fahri, Muhammad Yusrizal Fakhrizal, Achmad Bagus Farhan Rachmanda Fathan Naufal Ahsan Febrizky C Putri Firdaus, Achmad Paksi Fredinan Yulianda Gatot Eko Susilo Gatot Eko Susilo Gatot Eko Susilo Gung Bagus Jerfikanasa Murda I Wayan Nurjaya Ika Kustiani Indriana K, Dyah Irwani Ninik Wijaya Jerfikanasa Murda, Gung Bagus Karlina Sari Kesuma, Mas Achmad Arief Rachmatulah Khadafi, M Fariq Kristianto Usman Lintang Kurnia Aridini Luky Adrianto M, Sefrinta S M. Irfan Affandi Madany, Orista Ammar Margaretta Welly Melly Nugraheni Murda, Gung Bagus J Nur Arifaini Ofik Ofik Taufik P Ofik Purwadi Ofik Taufik P, Ofik Ofik Taufik Purwadi Ofik Taufik Purwadi, Ofik Taufik Opik Taufik Purwadi Pandi Aditiya Purwadi, Opik Taufik Qur'ani, Mutiara Nurul Rachmanda, Farhan Rahayu Sulistyorini Rahmat Effendi Rahmat Effendi, Rahmat Rian Alfian Sandy Kusuma Sari, Devi Kurnia Sari, Dina Mariana Setyanto Setyanto Setyanugraha, Tegar Siti Nurul Khotimah Subuh Tugiono Subuh Tugiono, Subuh Sudewa, Wijoyo Mensen Tiara Maelta Amanda Willy Brilliant Yosua Windy Putri Diwantari Yanti, Cristi Yuda Romdania Yuda Romdania Yuda Romdania Yuda Romdania Zainal Abidin Zainal Abidin