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Developing landslide susceptibility map using Artificial Neural Network (ANN) method for mitigation of land degradation Heni Masruroh; Amin Setyo Leksono; Syahrul Kurniawan; Soemarno Soemarno
Journal of Degraded and Mining Lands Management Vol 10, No 3 (2023)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2023.103.4479

Abstract

Landslides are one of the crucial problems that have an impact on land degradation and human life. This study aimed to develop vulnerability maps using ANN to mitigate land degradation in the Bromo Tengger Semeru with the extending area of Universal Transverse Mercator (UTM) Coordinate System Top 91277639, Bottom 911569, Left 692860, and Right 706860. The method applied the Artificial Neural Network (ANN) model using RStudio machine learning. Landslides were mapped using Sentinel Image and Orthomozaic photo interpretation from data acquisition using Unmanned Aerial Vehicle (UAV). The landslide control factor data was obtained through DEMNAS (National Digital Elevation Model) with a spatial resolution of 8 meters. Data normalisation was conducted using the Mix-Max method before it was processed using RStudio. The landslide existing for ANN workflow was processed using the Bioclim model. The results showed landslide susceptibility was categorised into four classes i.e., low susceptibility (29.83%), which was spatially spread on most in the lower slopes, moderate susceptibility (3.11%), high susceptibility (2.99%), and very high susceptibility (15.94) which is scattered on the upper slope to the middle slope of the watershed. The most significant factor influencing the landslide is the topography factor, with a Relative Importance (RI) value of 0.86; the hydrological factor, with an RI of 0.833 and the surface feature, with an RI of 0.355. The results of the landslide susceptibility model are very proper for land degradation mitigation strategies. It has high accuracy through an Area Under Curve (AUC) of 0.965 and a Precision Recall Curve (PRC) of 0.976.
Can Landuse Intensification Decrease Soil Carbon Stock in Upstream Sumber Brantas Watershed? Anita Dwy Fitria; Syahrul Kurniawan
Jurnal Biologi Tropis Vol. 23 No. 3 (2023): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i3.4979

Abstract

Upper Brantas watershed with volcanic ash soil has potentially high carbon stock. However, land-use intensification in the upstream watershed area is the potential deterioration of soil quality, mainly degradation. The study aimed to assess the effect of land-use intensification in the upper Sumberbrantas watershed on soil carbon stock. The study was conducted in the upper Sumber brantas watershed, particularly in Kali kungkuk micro watershed, Batu City, East Java – Indonesia. Soil samples were taken at 0-30 cm and 30-100 cm on 4 land uses (i.e., forest, agroforestry, cropland, and shrubland) with three replications. The variable measured include basal area, standing litter mass, soil bulk density, and soil organic C. The results showed that land-use intensification strongly impacted soil carbon stock at 0-30 cm and 30-100 cm depth of soil. The soil carbon stock degradation of around 60% to 67% in the intensive cropping systems and in the post-cropping cultivation was covered by a shrub as compared to the forest soil, especially at a depth of 0–30 cm. The correlation value (p<0.05) between the basal area (0.65) and standing litter mass (0.42) on soil carbon stock, especially at a depth of 0-30 cm, indicated that the basal area and standing litter mass increase soil carbon stock. The result was in line with the soil bulk density by ANOVA test at a depth of 0-30 cm and 30-100 cm showing the effect (p<0.05) where intensive land use consisting of treeless (i.e., cropland and shrubland) increases the soil bulk density.
UPAYA PENINGKATAN SERAPAN UNSUR HARA DAN HASIL BAWANG MERAH DI INCEPTISOLS MALANG MELALUI OPTIMALISASI DOSIS PUPUK MAJEMUK Retno Suntari; Sekar Mariam Hapsari; Syahrul Kurniawan
Agrika Vol 17, No 1 (2023)
Publisher : Badan Penerbitan Universitas Widyagama Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/ja.v17i1.4574

Abstract

ABSTRAKKabupaten Malang termasuk salah satu wilayah penghasil bawang merah terbesar di Jawa Timur pada tahun 2012-2019. Luas panen bawang merah di propinsi Jawa Timur pada tahun 2019 mencapai 42.962 hektar. Produksi bawang merah mengalami peningkatan, namun produktivitas bawang merah nasional masih tergolong rendah. Hal ini diduga akibat rendahnya kesuburan tanah maupun pemupukan yang kurang tepat. Upaya peningkatan produksi dapat dilakukan dengan aplikasi pupuk majemuk. Penelitian dilakukan di lahan percobaan Fakultas Pertanian Universitas Brawijaya di Kelurahan Jatimulyo, Kecamatan Lowokwaru Kota Malang. Penelitian dirancang menggunakan Rancangan Acak Kelompok (RAK) terdiri dari 8 perlakuan yaitu M0 (kontrol), M1 (100% pupuk dasar), M2 (50% pupuk majemuk), M3 (75% pupuk majemuk), M4 (100% pupuk majemuk), M5 (125% pupuk majemuk), M6 (150% pupuk majemuk) dan M7 (200% pupuk majemuk) dengan 3 kali ulangan. Hasil penelitian menunjukkan bahwa pupuk majemuk NPS (16:20:16) mempengaruhi pertumbuhan tanaman (panjang dan jumlah daun), produksi bawang merah (diameter umbi, bobot basah dan bobot kering umbi), dan serapan unsur hara tanaman. Pupuk majemuk NPS (50%-200%) tidak mempengaruhi pertumbuhan bawang merah, tetapi mempengaruhi produksi umbi bawang merah dan serapan N serta K. Pupuk majemuk NPS dosis 200% (setara 550 kg/ha) mampu meningkatkan produksi umbi bawang merah yang lebih banyak dibandingkan dengan dosis 50% dan 150% (setara 137,5 kg/ha dan 412,5 kg/ha). Pupuk majemuk NPS dosis 200% menurunkan pH tanah. ABSTRACTMalang Regency is one of the largest shallot producing regions in East Java in 2012-2019. The shallot harvested area in East Java province in 2019 reached 42,962 hectares. Shallot production has increased, but the national shallot productivity is still relatively low. This is thought to be due to low soil fertility and inappropriate fertilization. Efforts to increase production can be done with the application of compound fertilizers. The research was conducted in the experimental field of the Faculty of Agriculture, University of Brawijaya in Jatimulyo Village, Lowokwaru District, Malang City. The study was designed using a randomized block design (RBD) consisting of 8 treatments, namely M0 (control), M1 (100% basic fertilizer), M2 (50% compound fertilizer), M3 (75% compound fertilizer), M4 (100% compound fertilizer) , M5 (125% compound fertilizer), M6 (150% compound fertilizer) and M7 (200% compound fertilizer) with 3 replications. The results showed that NPS compound fertilizer (16:20:16) affected plant growth (length and number of leaves), onion production (tuber diameter, tuber fresh and dry weight), and plant nutrient uptake. NPS compound fertilizer (50%-200%) does not affect shallot growth, but affects shallot bulb production and N and K uptake. NPS compound fertilizer dose of 200% (equivalent to 550 kg/ha) can increase shallot bulb production which is more than the doses of 50% and 150% (equivalent to 137.5 kg/ha and 412.5 kg/ha). The NPS compound fertilizer at a dose of 200% lowers soil pH.
Aplikasi Konsep Eco-Culture dalam Pengembangan Kampung Wisata Buah Baran Bercahaya Ema Titisari; Siti Azizah; Syahrul Kurniawan; Abraham M Ridjal; Rahmi Yuniarti
RUAS Vol. 20 No. 1 (2022)
Publisher : Departemen Arsitektur Fakultas Teknik Universitas Brawijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.ruas.2022.020.01.11

Abstract

The concept of eco-culture has a sustainability paradigm that emphasizes the harmony of humans and ecosystems. The target is the strengthening of local characters through the study of local genius, as well as the application of science and technological innovation in managing the potential for improving the quality of the environment and humans. Increasing the economy through tourism is its added value. Kampung Baran has a unique ethnographic and geographical setting inhabited mostly by low-income people. The potential that can be developed is agriculture which is now slowly starting to be abandoned. This study examines the application of the eco-culture concept which consists of an image of space, an image of building, and an idealized concept of place for the development of Kampung Baran. Through a descriptive-phenomenological study, the researcher explores the physical-spatial-architectural and economic-social-cultural phenomena of Kampung Baran as the object of study. Furthermore, the study of the application of the concept of eco-culture in the village of Baran was carried out through a SWOT analysis. The results obtained indicate that the concept of eco-culture can be applied in Kampung Baran by emphasizing on strengthening the noble values of the culture of agrarian communities in the expression of tangible and intangible heritage that is adaptive to cultural dynamics and strengthening and developing local potential.
PERLINDUNGAN HUKUM TERHADAP KONSUMEN DALAM TRANSAKSI JUAL BELI E - COMMERCE Syahrul Kurniawan; Arpangi .
Jurnal Ilmiah Penelitian Mahasiswa Vol 2, No 2 (2023): September 2023
Publisher : Jurnal Ilmiah Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Perkembangan teknologi internet, atau yang dikenal sebagai e-commerce, telah memberikan dampak signifikan pada sektor perdagangan yang mengalami pertumbuhan pesat. E-commerce memungkinkan transaksi perdagangan dilakukan secara elektronik melalui transfer data, di mana informasi, produk, jasa, dan pembayaran dapat dilakukan melalui jaringan elektronik sebagai media utama. Penulisan ini bertujuan untuk mengidentifikasi perlindungan hukum yang diberikan kepada konsumen dalam transaksi e-commerce dan memahami tanggung jawab yang melekat pada pihak-pihak yang terlibat dalam transaksi tersebut. Metode penelitian yang digunakan adalah penelitian yuridis normatif, yang melibatkan analisis teori, konsep, asas hukum, serta peraturan perundang- undangan yang relevan dengan topik penelitian ini. Hasil dari penelitian ini maka dapat diperoleh kesimpulan bahwa: Pertama, bentuk perlindungan hukum konsumen dalam transaksi e-commerce telah diatur dalam Undang- Undang Nomor 11 Tahun 2008 Tentang Informasi dan Transaksi Elektronik mengatur beberapa ketentuan bentuk perlindungan hukum kepada konsumen pengguna transaksi e- commerce. Kedua, bentuk tanggung jawab para pihak yang terlibat dalam transaksi e- commerce tercermin di dalam Undang- Undang Nomor Pasal 12 ayat 3 Tentang Informasi dan Transaksi Elektronik yang menjelaskan bahwa setiap orang yang melakukan pelanggaran ketentuan tentang kewajiban dalam transaksi elektronik, bertanggung jawab atas segala kerugian dan konsekuensi hukum yang timbul. Kata Kunci: Perlindungan Hukum, Konsumen, E-commerce.
Effect of Micronutrient Fertilization on Soil Fertility and Production of Maize Nugroho, Gabryna Auliya; Novalia Kusumarini; Wachidiyah Romadhoni; Syahrul Kurniawan
Jurnal Online Pertanian Tropik Vol. 10 No. 3 (2023): JURNAL ONLINE PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jopt.v10i3.14388

Abstract

Balanced fertilization in both macro and micronutrients is one strategy in soil fertility management to prevent microelement deficiencies. This fertilization type could increase plant growth and production as well as maintain soil fertility. This research aimed to examine the role of micro fertilization on supporting plant productivity and soil fertility. Research that was conducted in Dau, Malang, East Java was designed using a Randomized Block Design (RBD) with 9 treatments, ie B0 (Control), B1 (100% standard fertilization), B2 (100% standard fertilization and 50% ZnCuB), B3 (100% standard fertilizer and 100% ZnCuB), B4 (100% standard fertilizer and 150% ZnCuB), B5 (75% standard fertilizer and 50% ZnCuB), B6 (75% standard fertilizer and 100% ZnCuB), B7 (75% basic fertilizer and 150% ZnCuB), and three replications of each. 100% of basic fertilization referred to 440 kg Urea/ha, 250 kg SP-36/ha, and 350 kg KCl/ha, while 100% micro fertilizer ZnCuB (4:6:6) was 19 kg/ha. Reducing 25% of basic fertilizer combined with 150% of micro fertilizer (28.5 kg/ha ZnCuB) resulted in a significant increase in plant growth and production by 54% to control.  Furthermore, micronutrient fertilizers could maintain soil fertility as well as prevent soil acidification.
Sensory Characteristics Of Pinogu Coffee From Bone Bolango Gorontalo Susilo, Bambang; Ciptadi, Gatot; Kurniawan, Syahrul; Fibrianto, Kiki; Samudra, Rizki Putra; Wulandari, Eka Shinta
Journal of Innovation and Applied Technology Vol 8, No 2 (2022)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jiat.2022.008.02.11

Abstract

Pinogu coffee is a superior coffee from the Gorontalo region. Pinogu coffee is a type of robusta coffee. From the results of the research conducted, this Pinogu coffee has sensory characteristics that tend to be bitter (taste and aftertaste) with the aroma of smoke and wood, followed by a burnt and roasted aroma and a slightly thick body or texture that coats the oral cavity. As for the chemical characteristics, ground Pinogu coffee contains a water content of 2.51%, caffeine content of 1.99%, and copper content of 13.86 mg/kg, for steeping the coffee contains a caffeine content of 0.06% and copper content of 0,39 mg/kg.
Pengaruh Kombinasi Pupuk Organik dan Anorganik terhadap Sifat Fisik dan Kimia Tanah serta Produksi Padi pada Lahan Kering yang Disawahkan Putra, Rizky Eka; Rayes, Mochtar Lutfi; Kurniawan, Syahrul; Ustiatik, Reni
Agrikultura Vol 35, No 1 (2024): April, 2024
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/agrikultura.v35i1.53686

Abstract

Lahan kering yang disawahkan memiliki proses pelumpuran dan penggenangan yang menyebabkan perbedaan kondisi sifat fisik tanah sehingga menurunkan kesuburan tanah, salah satunya yaitu kerusakan struktur tanah. Upaya untuk meningkatkan kesuburan tanah pada lahan tersebut dapat dilakukan dengan meningkatkan C-Organik, salah satunya yaitu aplikasi pupuk organik (asam amino dan asam humat). Aplikasi pupuk organik yang dikombinasikan pupuk anorganik dengan dosis yang tepat juga berpotensi untuk memperoleh produksi tanaman yang optimal. Tujuan penelitian ini yaitu untuk menganalisis perbedaan karakteristik tanah pada lahan kering yang disawahkan serta menganalisis pengaruh pemberian kombinasi pupuk organik dan anorganik terhadap kesuburan tanah dan produksi padi pada lahan kering yang disawahkan. Penelitian dilakukan di Kebun Percobaan Jatimulyo, Universitas Brawijaya. Penelitian ini menggunakan rancangan acak kelompok (RAK) dengan 9 perlakuan dan 3 kali ulangan. Parameter yang diukur yaitu pH, C-Organik, kapasitas tukar kation (KTK), Kdd, kejenuhan basa, berat isi, tekstur, jumlah anakan produktif, dan berat gabah kering panen. Hasil penelitian menunjukkan terdapat perubahan sifat fisik dan kimia tanah akibat perubahan pengolahan dari lahan kering menjadi lahan sawah. Aplikasi pupuk organik dan anorganik memberikan pengaruh nyata terhadap sifat kimia seperti pH, C-Organik, N-total, P-tersedia, Kdd dan KTK. Aplikasi pupuk organik dan anorganik juga meningkatkan produksi padi sebesar 39-59% dengan perlakuan dosis terbaik yaitu 75% pupuk dasar anorganik + 100% pupuk organik.
PENGARUH DOLOMIT TERHADAP SIFAT KIMIA TANAH, BAKTERI PELARUT FOSFAT, SERAPAN Ca, Mg, P DAN PRODUKSI JAGUNG MANIS Nopriani, Lenny Sri; Ramadhani, Filka; Ishaq, Rizki Maulana; Kurniawan, Syahrul; Hidayat, Muhamad Taufiq; Albarki, Georona Kusma
Jurnal Tanah dan Sumberdaya Lahan Vol. 12 No. 1 (2025)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtsl.2025.012.1.20

Abstract

weet corn productivity in Indonesia is still in the low category. One of the causes is the problem of soil with low pH. Soil with a low pH causes the availability of nutrients to decrease, thereby inhibiting plant growth and development. Efforts can be made to add dolomite, because hydrolyzed dolomite can increase nutrient availability in the soil. Therefore, this research was carried out with the aim of analyzing the effect of adding various doses of dolomite on soil chemical properties, plant uptake of Ca, Mg and P, population of phosphate solubilizing bacteria, and sweet corn productivity in the Tegalan Land of Junrejo Village, Batu City, East Java. The research design used a randomized block design (RAK) consisting of 9 treatments with 3 replications. Treatment consisted of: M0 = control; M1 = 100% N, P, K; M2 = 100% N,P,K + 100% Kieserite; M3 = 100% N,P,K + 50% Dolomit; M4 = 100%  N,P,K + 100% Dolomit; M5 = 100%  N,P,K + 150% Dolomit; M6 = 75%  N,P,K + 50% Dolomit; M7 = 75%  N,P,K + 100% Dolomit; M8 = 75%  N,P,K + 150% Dolomit. The data was analyzed for diversity using R studio software and continued with the DMRT (Duncan Multiple Range Test) test at 5% level. Next, to see the relationship and influence between parameters, correlation and regression tests were carried out. The findings demonstrated that adding 2.8 tonnes of dolomite per hectare might raise soil CEC (50.61%) and pH (13.41%). In addition, the addition of 4.2 tons/ha of dolomite was able to decrease soil P-available (5.65%), increase Ca-dd (26.4%), Mg-dd (85%), Ca absorption (165.12%), Mg absorption (366.67%), P absorption (78.57%), and sweet corn yield (78.04%). The addition of different doses of dolomite did not significantly alter the overall population parameter of phosphate-solubilizing bacteria. Furthermore, the link between sweet corn yield and nutritional absorption was both robust and weak. The increase in sweet corn output was impacted by P, Ca, and Mg absorption by 54.54%, 41.21%, and 42.79%, respectively.
PENINGKATAN EFISIENSI PENGGUNAAN BORON DALAM OPTIMASI PRODUKSI JAGUNG MANIS DI LAHAN KERING Nugroho, Gabryna Auliya; Hidayat, Muhamad Taufiq; Albarki, Georona Kusma; Siswanto; Natajaya, Andrean; Kurniawan, Syahrul
Jurnal Tanah dan Sumberdaya Lahan Vol. 12 No. 1 (2025)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtsl.2025.012.1.17

Abstract

The range between boron deficiency and toxicity in plants is utterly narrow, so that the certain dose of boron fertilizer is required for plants. Indicators of optimum boron fertilization can be measured from plant production and boron use efficiency (BUE) value. BUE influenced by the amount of soluble B-soil, type of B fertilizer, amount of boron input, type of plant, and adequacy of available macronutrients (NPK). However, excessive application of NPK base fertilizer from inorganic fertilizers can trigger soil degradation. Currently, there has not been much research that measures the reduction in the dose of NPK base fertilizer combined with boron fertilizer on plant BUE. The combination of reducing the dose of NPK base fertilizer and boron fertilizer was tested on sweet corn plants on production and BUE. This study was conducted with a randomized block design with 7 treatments, namely without fertilization (K0), base fertilization (D1), 100% base fertilization and 50–15% borate (D2–D4), and 75% base fertilization and 50–15% borate (D5–D7). The results of the initial soil analysis showed low boron content in the soil, so borate fertilization was required to provide nutrients for sweet corn plants. Application of NPK base fertilizer (100%) and addition of borate fertilizer at a dose of 50-100% (~3-6 kg/ha) significantly increased growth, plant biomass, B uptake, boron recovery efficiency (BRE), and B fertilizer efficiency ratio, compared to lower NPK-base fertilizer. Based on the estimated response curve, the recommended dose to achieve optimum-maximum sweet corn production and maximum boron recovery efficiency is 100% macro inorganic fertilization (urea, SP-36, KCl) combined with 5.72-6.75 kg/ha borate fertilizer.
Co-Authors Abraham M Ridjal Achmad Jauhar Arifin Aditya Nugraha Putra Adji Ahmad Rinaldo Fernandes Albarki, Georona Kusma Albarki, Georona Kusuma Allysa Puspa Saraswati Amin Setyo Leksono Andarini Puspita Anita Dwy Fitria Anita Dwy Fitria Ariska, Ayu Putri Arpangi . Aura Hanita Salsabila Ayu Putri Ariska Aziz, Novryanti Rizqi ‘Azizah, Siti Nur Bambang Susilo Beauty Laras Setia Pertiwi Budi Prasetya Budi Prasetya Budi Prasetya Budi Prasetya Budi Santoso Cahyo Bagus Susanto Cahyo Prayogo, Cahyo Christanti Agustina Corre, Marife D. Didik Suprayogo Dimas Mahardhika Satriawan Dony Rachmanadi Ema Titisari Endang Arisoesilaningsih Farah Amirat Febiona, Silvia Fitri Wijayanti Futihatu Rizkiani Azizah Fytria Kurniasari Gabryna Auliya Nugroho Gatot Ciptadi Ghani Ilham Prawiradijaya Hadi, Syamsu Ridzal Indra Hidayat, Muhamad Taufiq Hidayat, Muhammad Taufiq Hidayati Karamina Iqbal Rizky Nugroho Iva Dewi Lestariningsih Katili, Wardiman W KIKI FIBRIANTO Kurniatun Hairiah Kurniawan Sigit Wicaksono Kusumawati, Irma Ardi Lenny Sri Nopriani Maghfoer, Moch Dawam Mardiani, Mila Oktavia Marife De Corre Masruroh, Heni Maydella Vista Putri Rinandy Mochtar Lutfi Rayes Muhammad Hilmi Muhammad Nur Fauzan Muhammad Taufik Hidayat Muhammad Taufik Hidayat Muhammad Yusuf Mukharomah, Miftakhul Natajaya, Andrean Navarette, Ian A. Niken R Wandansari Noval Adieb Novalia Kusumarini Novalia Kusumarini Novalia Kusumarini Novryanti Rizqi Aziz Nugroho, Gabryna Auliya Nugroho, R Muhammad Yusuf Adi Pujo Nugroho, R. M. Yusuf Adi Pujo Nugroho, Wikan Agung Nunun Barunawati, Nunun Nur Azizah Nur Azizah Nur Azizah Oktari Hermita Putri Omar Nurcholis Purnamasari, Eka Putri Winda Asih Putri, Fenalda Sekar Maretha R Ay Alvisa Talitha Radiananda R Muhammad Yusuf Adi Pujo Nugroho Rahmi Yuniarti Ramadhan, Resa Kharisma Ramadhani, Filka Rana Syahla Refki Aulia Wiwaha Renaldi Sambo Eka Saputra Resa Kharisma Ramadhan Retno Suntari Rinandy, Maydella Vista Putri Rini Dwiastuti Rizki Maulana Ishaq Rizky Eka Putra, Rizky Eka S Sudarto S Sudarto S Sutopo Samudra, Rizki Putra Sekar Mariam Hapsari Siahaan, Adiva Zulaika Azalia Siswanto Siti Azizah Sizilia, Vannya Julia Soemarno Soemarno Soemarno Soemarno Sri Rahayu Utami Sugeng Riyanto Sujarwo Sujarwo Suntyas Siti Nuridayati Syamsu Ridzal Indra Hadi Tri Utami Ursulin Sacer Setyastika Ustiatik, Reni Veldkamp, Edzo W Widianto Wachidiyah Romadhoni Wikan Agung Nugroho Wisynu Ari Gutama Wiwik Handayani Wulandari, Eka Shinta Yulia Nuraini Zaenal Kusuma