Article Per Year (5 Year)
p-Index From 2021 - 2026
4.68
P-Index
This Author published in this journals
All Journal HAYATI Journal of Biosciences Maspari Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences BULETIN OSEANOGRAFI MARINA Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Journal of Marine Research Maspari Journal Jurnal Kelautan Tropis Panrita Abdi - Jurnal Pengabdian pada Masyarakat JFMR (Journal of Fisheries and Marine Research) Jurnal Perikanan Universitas Gadjah Mada Jurnal Intek Akuakultur Biosaintifika: Journal of Biology & Biology Education Jurnal Riset Akuakultur Aquacultura Indonesiana Journal of Tropical Marine Science
Ervia Yudiati
Department Of Marine Science, Faculty Of Fisheries And Marine Science, Diponegoro University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Engineering Environmental Science Immunology & microbiology Other

Published : 68 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 68 Documents
Search

 3   4   5   6   7 
The Effect of Enhancing Ulvan's Antioxidant Properties in Supplemented Diets on Accelerating The Phenoloxidase Immune Response in White Shrimp Azhar, Nuril; Yudiati, Ervia; Ambariyanto; Trianto, Agus
HAYATI Journal of Biosciences Vol. 31 No. 6 (2024): November 2024
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.31.6.1116-1129

Abstract

This study investigated the total phenol content (TPC) and DPPH inhibition of ulvan from Ulva lactuca, along with its supplementation effects on the specific growth rate (SGR) and phenoloxidase (PO) activity of Litopenaeus vannamei. Ulva lactuca samples were processed to obtain four ulvan extracts using different methods such as P-HWE (Polysaccharide-Hot Water Extract), O-HWE (Oligosaccharide-Hot Water Extract), P-A-HWE (Polysaccharide-Acid-Hot Water Extract), and O-A-HWE (Oligosaccharide-Acid-Hot Water Extract). The U. lactuca powder was treated with 80% ethanol overnight, then centrifuged and dried. Depigmented U. lactuca was extracted with water (65°C, 2 hours), and polysaccharides were precipitated with 99% ethanol, yielding P-HWE. P-HWE was heated at 145°C for 4.5 hours to yield O-HWE. Another extraction after depigmentation, using water containing H2O2 and ascorbic acid (65°C, 2 hours), precipitated P-A-HWE, which was dried and heated to yield O-A-HWE. FTIR analysis provided insights into the chemical composition and structural characteristics of ulvan extracts. TPC and DPPH inhibition were measured spectrophotometrically, and PO activity using a colorimetric assay with L-DOPA. Ulvan supplementation in shrimp feed was evaluated for growth and immune response. Results showed significant differences in TPC, DPPH inhibition, and PO activity among extracts, with O-A-HWE having the highest phenol content and DPPH inhibition. Ulvan supplementation significantly influenced the SGR of L. vannamei, with the highest SGR in the O-A-HWE treatment. This study suggests that ulvan extracts, especially O-A-HWE, could be effective natural immunostimulants for enhancing the health and growth of L. vannamei, warranting further research to optimize extraction methods and understand the underlying mechanisms.
Machine Learning-Driven Seaweed Genera Identification on a Web Application Using Teachable Machine Azhar, Riza Nur; Yudiati, Ervia; Sedjati, Sri
Jurnal Perikanan Universitas Gadjah Mada Vol 26, No 1 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.92955

Abstract

This study aims to evaluate the use of machine learning technology, particularly Teachable Machine, in identifying seaweed genus in Indonesia. The limitations of identification databases and the lack of previous research were the main drivers of this study. The research focused on Panjang Island with three representative field data collection stations. This field data became the basis for training machine learning models for identification. In addition to field data, information from the literature on seaweed visual characteristics was also taken to support the identification process. The machine learning model developed achieved 99.42% accuracy in identifying 13 classes of 9 seaweed genus. The implementation of the model on the web application showed satisfactory responsive performance, including in the speed test on Google PageSpeed. Overall, the integration of machine learning technology in a web application platform provides a practical solution for accurate and accessible seaweed identification. This invention has great potential in supporting research, conservation, and sustainable utilization of marine resources in Indonesia.
EXPLORATION OF SEA CUCUMBER INTESTINAL SYMBIONT MICROBE AS PROBIOTIC MICROBE CANDIDATE IN HEALTHCARE PRODUCTS Pringgenies, Delianis; Girsang, Putri Hutari; Yudiati, Ervia; Santosa, Gunawan Widi
JFMR (Journal of Fisheries and Marine Research) Vol. 4 No. 1 (2020): JFMR
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2020.004.01.4

Abstract

Natural ingredients from animals and plants generally have potential in pharmaceutical applications. However, there are still relatively little exploration made on the active ingredients from marine life. Sea cucumbers inhabit seabed and are filter feeders, consuming all microorganisms within their vicinity, which opens the prospect of medicinal applications of sea cucumber intestinal symbiont microbes. This study aims to obtain sea cucumber intestinal symbiont microbes with potential pharmaceutical application as probiotic microbe candidate. The study was carried out by collecting samples, microbe isolation, antimicrobial screening, identification of potential probiotic microbe candidate. Characteristics of the microbe were studied by biochemical screening, and molecular identification. The study found 21 microbial isolates from Holothuria atra and 30 microbial isolates from Holothuria leucospilota. Antimicrobial activity screening results against pathogens of Bacillus cereus dan Pseudomonas aeruginosa found 13 microbial isolates with positive activity. Four species were identified by molecular identification, namely Bacillus aquimaris, Bacillus maritimus, Bacillus toyonensis, and Virgibacillus chiguensis, whereas the other nine were identified by biochemical screening. Four microbe genus, namely Rothia sp., Listeria sp., Micrococcus sp., and Staphylococcus sp, were found to be the most viable candidate for probiotics. It was concluded that Bacillus sp., Rothia sp., Micrococcus sp., and Staphylococcus sp. Exhibited the most potential as probiotic microbes.
ANTIBACTERIA ACTIVITY OF GASTROPOD ASSOCIATION BACTERIA FROM MANGROVE ECOSYSTEM AGAINST BACILLUS CEREUS AND ESCHERICHIA COLI AND IT’S POTENCY OF APPLICATION FOR BELANAK FISH (MUGIL SUBVIRIDIS) Wijaya, Patria Ami; Pringgenies, Delianis; Yudiati, Ervia
JFMR (Journal of Fisheries and Marine Research) Vol. 5 No. 1 (2021): JFMR
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2021.005.01.3

Abstract

Gastropod association bacteria from magrove ecosystem have a great potency as antibacteria. The contamination of Escherichia coli and Bacillus cereus can cause damage in fish product. The aims of these research are to determine gastropod association bacteria that can inhibit E. coli and B. cereus growth, as well as the contaminantion bacteria in Belanak (Mugil subviridis). Gastropods sample Certhideopsilla alata, Cerithidea quoyii, Cassidula aurisfelis, Cassidula nucleus, Telescopium telescopium were collected at Mangrove Education Park, Tugu, Semarang. The resaerch procedure were isolation, antibacteria test, biochemistrically identification, and then application in Belanak fish (Mugil subviridis). There were 61 bacteria isolated. Thirteen isolates were able to inhibit E. coli and eight to B. cereus. Supernatant of GMT 3.2.5 and GMT 4.1.3 have the most widely inhibition zone, (8,48 mm and 7,84 mm). Biochemistry identification shown that GMT 3.2.5 and GMT 4.1.3 has identic characteristic with genus Micrococcus sp. and Bacillus sp. Total plate count (cfu/ml) of bacteria from Belanak fish flesh that soaked by Micrococcus sp. GMT 3.2.5 and Bacillus sp. GMT 4.1.3 supernatant were 115 x 104 and 265 x 103colony. The colony were less than negative control  (2312 x 103 colony). The association bacteria can inhibit contaminant bacteria in Belanak fish.
Commercial Probiotics Improve Growth, Feed Efficiency, Nitrogen Removal, Hemocyte Count and Suppression of Vibrio Population in Pacific White Shrimp Culture Utami, Diah Ayu Satyari; Ilham, Ilham; Insani, Liga; Kusmiatun, Anik; Wahyu, Wahyu; Yudiati, Ervia; Rahman, Rahman; Albasri, Hatim; Szuzter, Brian Walter
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 30, No 3 (2025): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.30.3.395-410

Abstract

The Pacific white shrimp (Penaeus vannamei) is a key species in global aquaculture, particularly under intensive farming systems where high stocking densities often lead to deteriorating water quality, disease outbreaks, and reliance on antibiotics. While probiotics are increasingly applied to enhance shrimp health and performance, comparative evidence on the efficacy of different commercial probiotic formulations remains limited. This study aimed to evaluate the effects of three commercial probiotic products on growth performance, water quality, microbial populations, and immune response in intensively reared Pacific white shrimp. Shrimp were fed diets supplemented with one of three probiotics (PB, PL, and PMB) or a control diet for 40 days. Growth parameters, nitrogenous waste levels, bacterial counts in water and organs, and total hemocyte count (THC) were analyzed. The PB treatment (multi-strain Bacillus) significantly enhanced specific growth rate (2.99±0.0027% day⁻¹), feed efficiency (57.5±0.09%), weight gain, and THC (3.80 × 10⁵ cells mm⁻³) compared to control (P<0.05). The PB and PMB treatments also reduced total ammonia nitrogen, nitrite, nitrate, and Vibrio populations in water and shrimp tissues. Intestinal colonization by beneficial bacteria was highest in PB and PL groups. These results demonstrate that specific probiotic formulations, particularly PB, can improve growth, immunity, and water quality while reducing reliance on antibiotics and water exchange. The findings support the integration of targeted probiotics in sustainable shrimp aquaculture, including biofloc and recirculating aquaculture systems (RAS).
Pertumbuhan, Tingkat Kelangsungan Hidup dan Stres Salinitas Litopenaeus Vannamei Melalui Pengkayaan Artemia dengan Alginat Yudiati, Ervia; Harahap, Akbar; Ridlo, Ali; Arifin, Zaenal; Hidayati, Jelita Rahma
Jurnal Intek Akuakultur Vol. 7 No. 1 (2023): Intek Akuakultur
Publisher : Program Studi Budidaya Perairan Universitas Maritim Raja Ali Haji

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

Abstract

Salah satu faktor penurunan produktivitas udang disebabkan oleh faktor lingkungan, termasuk salinitas dan kualitas pakan, sehingga perlu ditingkatkan. Tujuan penelitian ini untuk mengetahui pengaruh pemberian Artemia yang diperkaya alginat terhadap tingkat kelangsungan hidup, pertumbuhan dan ketahanan terhadap stres salinitas pada Post-Larva (PL)1 Litopenaeus vannamei. Pengkayaan Artemia dilakukan dengan proses perendaman selama satu jam. Metode yang digunakan pada penelitian ini adalah Rancangan Acak Kelompok, dengan Kontrol (tanpa pengkayaan alginat) dan 3 perlakuan (pengkayaan Artemia sebanyak 10 ekor/mL/hari dengan alginat pada dosis 0 (kontrol), 400, 600, 800 ppm). Setiap perlakuan diulang sebanyak tiga kali. Pemeliharaan dengan pemberian pakan pengkayaan Artemia dilakukan selama 14 hari. Pertumbuhan panjang mutlak tertinggi diperoleh perlakuan yang diberi Artemia yang diperkaya alginat 600 ppm. Pertumbuhan mutlak berat diperoleh dari perlakuan Artemia dengan pengkayaan alginat 600 dan 800 ppm. Ketahanan stres salinitas tertinggi dengan kematian terlama diperoleh pada perlakuan yang diberi Artemia dengan pengkayaan alginat 400 ppm. Pemberian Artemia yang diperkaya alginat mampu meningkatkan pertumbuhan dan ketahanan terhadap stres salinitas PL L. vannamei, namun tidak menunjukan pengaruh terhadap tingkat kelangsungan hidup.
IMMUNOSTIMULATORY EFFECTS OF ULVAN ON TRYPSIN-MEDIATED PROTEIN DIGESTION IN THE GUT OF PACIFIC WHITELEG SHRIMP (Litopenaeus vannamei) Azhar, Nuril; Yudiati, Ervia; Ambariyanto, Ambariyanto; Alghazeer, Rabia; Trianto, Agus
Jurnal Riset Akuakultur Vol 19, No 1 (2024): (Maret 2024)
Publisher : Politeknik Kelautan dan Perikanan Jembrana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jra.19.1.2024.45-56

Abstract

Litopenaeus vannamei has emerged in the aquaculture industry. Production consistency, nutrition, and disease management play critical roles, particularly the digestive enzymes such as trypsin. This study assesses Ulvan, an immunostimulant from Ulva lactuca, on shrimp trypsin activity. Trypsin has been found to significantly enhance the activity of hemocyanin phenoloxidase, a crucial component of humoral immunity. This study aims to evaluate the potency of ulvan related to trypsin as an immunostimulant agent, extracted from Ulva sp.  Ulvan, extracted using various methods (P-HWE, O-HWE, P-A-HWE, and O-A-HWE), was evaluated using different doses of (0 g kg-1 (Control), 0.75 g kg-1 (ULV-0.75), 1.50 g kg-1 (ULV-1.50), and 3.00 g kg-1 (ULV-3.00) of feed). The O-A-HWE exhibited the fastest and highest increase in trypsin activity on day 4, surpassing the control on days 2, 3, 7, and 8. The P-HWE, O-HWE, and P-A-HWE also showed significant changes in trypsin activity compared to the control on specific days. Meanwhile, trypsin activity in Ulvan-fed shrimp did not significantly differ from the control on days 0 and 1. The differences emerged on day 2 and 3, notably between ULV-1.50 g kg−1 and ULV-0.75 g kg−1. The ULV-3.00 g kg−1 showed no significant difference from ULV-1.50 g kg−1. O-A-HWE demonstrated significant differences in trypsin activity compared to other Ulvan extracts, suggesting its potential to enhance shrimp health.Litopenaeus vannamei memiliki peran yang besar dalam industri akuakultur. Konsistensi dalam produksi, nutrisi, dan pengelolaan terhadap penyakit merupakan bagian yang sangat penting, terutama enzim pencernaan, di antaranya tripsin. Tripsin berfungsi untuk meningkatkan fenoloksidase hemosianin, yang peranannya penting untuk kekebalan. Studi ini mengevaluasi Ulvan, yaitu bahan yang bersifat imunostimulan dari Ulva sp., terhadap aktivitas tripsin udang. Ulvan, diekstraksi menggunakan berbagai metode (P-HWE, O-HWE, P-A-HWE, dan O-A-HWE), dievaluasi menggunakan perlakuan dosis yang berbeda (0 g kg-1 (Kontrol), 0,75 g kg-1 (ULV-0,75), 1,50 g kg-1 (ULV-1,50), dan 3,00 g kg-1 (ULV-3,00) pada pemeliharaan udang vaname selama 10 hari. O-A-HWE menunjukkan peningkatan aktivitas tripsin tercepat dan tertinggi pada hari ke-4, melebihi kontrol pada hari ke-2, 3, 7, dan 8. P-HWE, O-HWE, dan P-A-HWE juga menunjukkan perubahan signifikan dalam aktivitas tripsin dibandingkan dengan kontrol pada hari-hari tertentu. Sementara aktivitas tripsin dalam udang yang diberi Ulvan tidak berbeda secara signifikan dari kontrol pada hari ke-0 dan 1, perbedaan mulai terlihat pada hari ke-2 dan 3, terutama antara ULV-1,50 g kg−1 dan ULV-0,75 g kg−1. ULV-3,00 g kg−1 tidak menunjukkan perbedaan yang signifikan dari ULV-1,50 g kg−1. O-A-HWE menunjukkan perbedaan signifikan dalam aktivitas tripsin dibandingkan dengan ekstrak Ulvan lainnya, sehingga berpotensi dalam meningkatkan kesehatan udang.
GROWTH PERFORMANCE, SURVIVAL RATE, AND RESISTANCE AGAINST AHPND OF Litopenaeus vannamei JUVENILES FED WITH SYNBIOTIC BIO-ENCAPSULATED ARTEMIA Yudiati, Ervia; Azhar, Nuril
Jurnal Riset Akuakultur Vol 19, No 3 (2024): September (2024)
Publisher : Politeknik Kelautan dan Perikanan Jembrana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jra.19.3.2024.191-201

Abstract

The whiteleg shrimp (Litopenaeus vannamei) is a highly valued aquaculture species globally, yet its production faces challenges due to disease outbreaks, notably acute hepatopancreatic necrosis disease (AHPND). This study aimed to evaluate the growth and survival of L. vannamei juveniles fed with synbiotic bio-encapsulated Artemia and their resilience against AHPND-causing Vibrio parahaemolyticus and salinity stress. The experiment employed a completely randomized design with two treatments: one with synbiotic-enriched Artemia (600 ppm alginate and Lactobacillus bulgaricus) and a control without synbiotic. Each treatment was replicated five times, using 600 juveniles at a density of 30 post-larvae per L over a 14-day rearing period. Growth and survival metrics were recorded, followed by challenge tests for AHPND and salinity shock. The juveniles' survival rate was recorded 54 hours post-infection with VpAHPND and every 10 minutes for 230 minutes after salinity exposure until 100% mortality. Results indicated higher survival (92.0 ± 9%), length gain (243.33 ± 18.80 mm), specific growth rate (18.44±2.01%), and stress tolerance in juveniles fed synbiotic encapsulated Artemia compared to the control. The survival rates for the challenge test with AHPND and salinity shock were similarly improved under synbiotic treatment, suggesting that synbiotics significantly benefit nursery production of L. vannamei. This study highlights the potential of synbiotic application in enhancing the resilience and growth of L. vannamei against common stressors in aquaculture, indicating its potential to support more sustainable shrimp farming practices.Udang vaname (Litopenaeus vannamei) adalah komoditas budidaya bernilai tinggi di seluruh dunia, namun produksinya menghadapi tantangan akibat wabah penyakit, terutama serangan acute hepatopancreatic necrosis disease (AHPND). Penelitian ini bertujuan untuk mengevaluasi pertumbuhan dan kelangsungan hidup benih L. vannamei yang diberi pakan Artemia yang dibioenkapsulasi dengan sinbiotik serta ketahanannya terhadap Vibrio parahaemolyticus penyebab AHPND dan stres salinitas. Eksperimen ini menggunakan rancangan acak lengkap dengan dua perlakuan: satu dengan Artemia diperkaya sinbiotik (600 ppm alginat dan Lactobacillus bulgaricus) dan kontrol tanpa sinbiotik. Setiap perlakuan diulang lima kali, dengan menggunakan 600 ekor benih udang pada kepadatan 30 ekor pascalarva per L selama 14 hari periode pemeliharaan. Parameter pertumbuhan dan kelangsungan hidup dicatat, diikuti dengan uji tantang terhadap AHPND dan kejutan salinitas. Tingkat kelangsungan hidup benih dicatat 54 jam pasca-infeksi dengan VpAHPND dan setiap 10 menit selama 230 menit setelah paparan salinitas hingga mortalitas mencapai 100%. Hasil menunjukkan kelangsungan hidup yang lebih tinggi (92,0 ± 9%), peningkatan panjang (243,33 ± 18,80 mm), laju pertumbuhan spesifik (18,44 ± 2,01%), dan toleransi stres yang lebih baik pada benih udang yang diberi pakan Artemia berenkapsulasi sinbiotik dibanding kontrol. Tingkat kelangsungan hidup pada uji tantang dengan AHPND dan kejutan salinitas juga meningkat dengan perlakuan sinbiotik, menunjukkan bahwa sinbiotik memberikan manfaat signifikan pada produksi L. vannamei fase pendederan. Penelitian ini menunjukkan adanya potensi aplikasi sinbiotik dalam meningkatkan ketahanan dan pertumbuhan L. vannamei terhadap stresor umum dalam akuakultur, serta potensinya untuk mendukung kegiatan budidaya udang yang lebih berkelanjutan. 
Co-Authors Abidin Nur II Adella, Alisa Sukma Adha Susanto Adi Santoso Agung Sudaryono Agus Setyawan Agus Trianto Akbar Harahap Alfi Satriadi Alghazeer, Rabia Ali Djunaedi Ali Djunaedi Ali Djunaedi Ali Ridlo Alifia Nabilla Putri Alim Isnansetyo Amalia Rachma Fatchiyyah Ambariyanto Ambariyanto , Ambariyanto Ambariyanto Ambariyanto Ambariyanto Amelia Cahya Angelina Angelina, Amelia Cahya ANIK KUSMIATUN Annisa Afifah Nugroho Arief Taslihan Arumning T. Fauziah Arumning Tias Fauziah Avigail, Yolanda Ayunda Ainun Nisa Azhar, Nuril Azhar, Riza Nur Bambang Yulianto Bambang Yulianto Chika Velita Anindya Yulian Chrisna A Suryono Chrisna Adhi Suryono Chrisna Adi Suryono Danang Ambar Prabowo Dea Shinta Kharisma Adziana Dedi . Dedi Setiawan Delianis Pringgenies Delianis Pringgenies Delianis Pringgenies Desrina Desrina DIAH AYU SATYARI UTAMI Diah Permata Wijayanti Diah Tri OktaviyantI Dieng Widawati Dina Ayu Magfirani Dinny Anjang Sari Diyah Putri Ambarwati Djoko Suprapto Dwi Wulandari Dwi Wulandari Edi Wibowo Endang Sri Susilo Endang Sri Susilo Endang Supriyantini Eny Heriyati Fadhliyah Idris Fanny Iriany Ginzel Girsang, Putri Hutari Gunawan Widi Santosa Gunawan Widi Santosa H. Endrawati Haeruddin Haeruddin Harahap, Akbar Hatim Albasri, Hatim Hilda Ayu Aprilia Hilda Ayu Aprilia Hotnida Junita Situmeang Ighwerb, Mostafa Imhmed Ikhlasul Amal Ilham Ilham Insafitri, I Insani, Liga Ipanna Enggar Irpan Hasibuan Irwani Irwani Ita Karlina Ita Riniatsih Ita Widowati Jelita Rahma Hidayati Johannes Hutabarat Langkah Sembiring Lestari, Raisha Fahmida Dwi Lilik Maslukah Linggar Dirgantara Prasetyo Magfirani, Dina Ayu Mila Safitri Rizfa Mila Safitri Rizfa Mostafa Imhmed Ighwerb Muhammad Salauddin Ramadhan Djarod Muhammad Salauddin Ramadhan Djarod Muhammad Syaifudien Bahry Muhammad Syaifudien Bahry Natasya Erdza Aulia Nuril Azhar Nuril Azhar Nuril Azhar Patria Ami Wijaya Puji Norbawa Putri Hutari Girsang Rabia Alghazeer Rabia Alghazeer Rabia Alghazeer Raden Bagus Sugio Sumanta Rahman Rahman Rani Agustian Rani Agustian Rizkina Rani Agustian Rizkina Retno Hartati Ria Azizah T.N. Ria Azizah Tri Nuraeni Rini Widiyadmi Rudhi Pribadi Rustadi Rustadi Saniyatul Ulya Sari, Alfianisa Permata Sarjito - Sarjito . Shofa Farihah Simanjuntak, Sri Devi Sri Devi Simanjuntak Sri Sedjati Sri Sedjati Sri Sedjati Sri Sejati Subagiyo Subagiyo Subagiyo Subagiyo Sunarsih Sunarsih Sunaryo Sunaryo Suryono Suryono Suryono Suryono Suryono Suryono Szuzter, Brian Walter The Michael Febrian Wijaya Tika Retnowati Triyanto Triyanto Valentina R. Iriani Wahyu Wahyu Widianingsih Widianingsih Widianingsih Widianingsih Wijaya, Patria Ami Yolanda Avigail Yulius Docang Casessar Zaenal Arifin Zaenal Arifin Zaenal Arifin Zaneb M. Ben Mansur