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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Jurnal Ilmu Lingkungan BIOTROPIA - The Southeast Asian Journal of Tropical Biology Buletin Kebun Raya Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) REINWARDTIA BERITA BIOLOGI JURNAL BIOLOGI INDONESIA Syntax Literate: Jurnal Ilmiah Indonesia Biosaintifika: Journal of Biology & Biology Education Igya ser hanjop: Jurnal Pembangunan Berkelanjutan Sriwijaya Bioscientia JOURNAL OF WETLANDS ENVIRONMENTAL MANAGEMENT Reinwardtia Treubia Biodiversitas Journal of Biological Diversity
Jatna Supriatna
Departement Of Biology, Faculty Of Mathematics And Natural Science, Universitas Indonesia
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Education Engineering Environmental Science Immunology & microbiology Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Social Sciences Veterinary Other

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FLORISTIC COMPOSITION AND STRUCTURE OF A PEAT SWAMP FOREST IN THE CONSERVATION AREA OF THE PT NATIONAL SAGO PRIMA, SELAT PANJANG, RIAU, INDONESIA Yusi Rosalina; Kuswata Kartawinata; Nisyawati Nisyawati,; Erwin Nurdin; Jatna Supriatna
Reinwardtia Vol. 14 No. 1 (2014)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v14i1.416

Abstract

We studied the floristic composition and structure of the logged-over peat swamp forest in the PT National Sago Prima of PT Sampoerna Agro Tbk. group for future management of the conservation area that has been set aside by the company. In January - February 2012, 25 quadrats of 20 m x 20 m were laid out systematically along a transect, thus covering a sampled area of 1-ha. The results showed that the study site was a regenerating and developing secondary peat swamp forests having high plant species richness. The total number of species recorded was 73 species of 38 families, consisting of 49 species (30 families) of trees (DBH? 10 cm ), 42 species (24 families) of saplings (H > 1.5 m and DBH < 10 cm), and 41 species (27 families) of seedlings and undergrowth. Tree density was 550 individuals/ha, and total tree basal area was 18.32 m2. The Shannon-Wiener’s Diversity Index for trees was high (3.05) Two tree species with the highest Importance Values (IV) were Pandanus atrocarpus (IV= 45.86 %) and Blumeodendron subrotundifolium (22.46 %). The tree families with the highest IV were Pandanaceae (45.86), Myrtaceae (40.37), and Dipterocarpaceae (39.20). Forest structure dominated by trees with a diameter below 20 cm amounting to 408 trees/ha (74.05%). and D and E strata with height of less than 20 m, and density of 431 trees/ha (78.36%). Jaccard Similarity index among species, showed strong association between Pandanus atrocarpus and Blumeodendron subrotundifolium and based on this association combined with high IVs, the two parameters of species characterized the forest, hence the forest could be designated as the Pandanus atrocarpus--Blumeodendron subrotundifolium association. Primary forest species with high economic values were still present in the forest. Eleven species can be included in the IUCN Red List, of which Shorea rugosa is in the category of Critically Endangered), Shorea tesymanniana Endangered and Gonystylus bancanus vulnerable, hence they should be protected.
Dapatkah Pembayaran Jasa Lingkungan Mencegah Deforestasi dan Meningkatkan Kesejahteraan Masyarakat? Pelajaran dari Hutan Desa Laman Satong, Kabupaten Ketapang, Kalimantan Barat Nugroho, Cahyo; Supriatna, Jatna; Kusworo, Ahmad
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol 9 No 4 (2019): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan
Publisher : Pusat Penelitian Lingkungan Hidup, IPB (PPLH-IPB) dan Program Studi Pengelolaan Sumberdaya Alam dan Lingkungan, IPB (PS. PSL, SPs. IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.9.4.882-892

Abstract

In order to reduce deforestation, the Government of Indonesia has introduced several initiativies, including a Hutan Desa (village forest) program to bring local communities to become actor in the forest management. The Reduced Emissions from Deforestation and Forest Degradation plus (REDD+) and Payment for Environmental Services (PES) scheme for the hutan desa is one of the alternative scheme to provide economic incentives for their effort to manage their forest sustainably. This study aims to evaluate the impact of the initiation of REDD+ and PES funds for hutan desa to deforestation and community wellbeing. The impact to deforestation is measured through quantitative approach by comparing quantitatively forest cover on 1070ha of village forest through satelite image analysis. The impact to community wellbeing is measured through participatory wellbeing assessment involving 30 informants during a focus group discussion. An attribution to the variables are conducted qualitatively by in-depth interviews to 25 key informants. The result shows eventhough the benefit provided by the initiation of REDD+ and PES (the money) is much less than the opportunity cost, the community is still accepting the scheme and succeeds reducing deforestation. However, the benefit is not sufficient enough yet to improve community wellbeing.
SYSTEM DYNAMICS MODELING OF LAND USE CHANGE IN WEST KALIMANTAN, INDONESIA Pahrian Ganawira Siregar; Jatna Supriatna; Raldi Hendro Koestoer; Djoko Harmantyo
BIOTROPIA Vol. 25 No. 2 (2018): BIOTROPIA Vol. 25 No. 2 August 2018
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3410.986 KB) | DOI: 10.11598/btb.2018.25.2.792

Abstract

The main effects of human activities on the environment result in land use and land cover changes. Land overexploitation and development activities in West Kalimantan of Indonesia necessitated the focus of this research which aims to analyze and predict land use changes in West Kalimantan. The results of such a study assist researchers, planners, and policy makers to formulate suitable land use policies in the future in order to balance economic development and natural resource conservation. Moreover, it makes Indonesia shift from middle income to become a developed country in 2030. Methodology employs field observation, key informant interviews, focus group discussions, and system dynamics modeling. The field observation covered communities in several locations in the study site to identify patterns of land use. The system dynamics was applied to analyze the land use change system and estimate the extents of land cover change in the future. The study showed several outcomes: (i) The main leverage factors in the land use change system in West Kalimantan were the desire to reach the expected economic growth and the increased per capita consumption of edible oil globally; (ii) In the business-as-usual modeling, the increasing global demand for edible oil will lead to significant increment of oil palm plantation area, even the total area of plantation could be wider compared to that of the remaining forest area by 2030; (iii) Key interventions that need to be considered in the future is to conduct reforestation (with reforestation rate of at least 0.5% per year) and limited oil palm plantation development to a maximum of 50% of developed area.
Local knowledge of medicinal plants in sub-ethnic Batak Simalungun of North Sumatra, Indonesia MARINA SILALAHI; JATNA SUPRIATNA; EKO BAROTO WALUJO; NISYAWATI NISYAWATI
Biodiversitas Journal of Biological Diversity Vol. 16 No. 1 (2015)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d160106

Abstract

Silalahi M, Supriatna J, Walujo EB, Nisyawati. 2015. Local knowledge of medicinal plants in sub-ethnic Batak Simalungun of North Sumatra, Indonesia. Biodiversitas 16: 44-54. Research on the local knowledge of medicinal plants by sub-ethnic BatakSimalungun of North Sumatra was conducted, using an ethnobotanical approach. The sample consisted of 8 key informants and 32general respondents, who were grouped into two, namely those who were 30-50 years old and &gt;50 years old. Data were analyzed bothqualitatively by descriptive statistics and quantitatively by calculating the index of cultural significance (ICS) and the use value (UVs).It was found that 239 species (170 genera, 70 families) of medicinal plants were used to cure 18 kinds of natural diseases and 2 kinds ofsupra natural diseases. Almost half of those plants (119 species) had leaves used as medicines. Among the diseases, gastrointestinaldisorders had the highest number of medicinal plants used (72 species), followed by fever (64 species), and fractures (41 species). Itseemed that younger generation had lost their knowledge in the medicinal plants because their knowledge of medicinal plants (48.19 ±8.35 species) was lower than the that of older generation (170.19 ± 18.38 species), while our key informants had the highest knowledgeof medicinal plants among respondents (202.00 ± 12.32 species).
Diversity of Selaginella across altitudinal gradient of the tropical region AHMAD DWI SETYAWAN; JATNA SUPRIATNA; DEDY DARNAEDI; ROKHMATULOH ROKHMATULOH; SUTARNO SUTARNO; SUGIYARTO SUGIYARTO
Biodiversitas Journal of Biological Diversity Vol. 17 No. 1 (2016)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d170152

Abstract

Setyawan AD, Supriatna J, Darnaedi D, Rokhmatuloh, Sutarno, Sugiyarto. 2016. Diversity of Selaginella across altitudinalÂ&nbsp;gradient of the tropical region. Biodiversitas 17: 384-400. Selaginella prefers moist environment for its growth and requires water forÂ&nbsp;fertilization; therefore it is often found flourish in plateau and hilly mountains with high rainfall. The aim of this research was to knowÂ&nbsp;species diversity of Selaginella along altitudinal gradient in the southern part of Java, Indonesia. The research was conducted betweenÂ&nbsp;July 2007 and January 2014across the altitudinal region of Java, Indonesia, which includes the districts of Wonosobo, Purworejo,Â&nbsp;Kebumen, Banjarnegara and its border areas, with altitudes between 0 and 2500 m. asl. The research found 12 selaginellas species, 10Â&nbsp;species collected from field research, namely: S. aristata, S. ciliaris, S. intermedia, S. involvens, S. opaca, S. ornata, S. plana, S.Â&nbsp;repanda, S. remotifolia, and S. uncinata; and two species only known from herbarium collection of Herbarium Bogoriense (BO), namely S. singalanensis and S. willdenowii. This research was the first publication of the Selaginella flora along altitudinal gradient from the coastal area to the high mountains of Central Java, Indonesia.
Biological characteristics on three demersal fish landed in Tegal, north coast of Central Java, Indonesia DUTO NUGROHO; MUFTI P. PATRIA; JATNA SUPRIATNA; LUKY ADRIANTO
Biodiversitas Journal of Biological Diversity Vol. 17 No. 2 (2016)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d170242

Abstract

Nugroho D, Patria MP, Supriatna J, Andrianto L. 2016. Biological characteristics on three demersal fish landed in Tegal, north coast of Central Java, Indonesia. Biodiversitas 17: 679-686. Java Sea has a potential marine biodiversity that has been harvested since years. Demersal fish resources is one of the targeted species by Danish seine fisheries operated in North coast of Java. To support on developing conservation and management measures, an observation on species composition, length frequencies and maturity stages were carried out during August 2014 to July 2015. Sampling took place in landing place of Tegalsari fishing port central Java. A total 129 fish species identified, among them 91 species were targeted as edible fish. Sampling on three dominant species i.e., Purple-spotted bigeye Priacanthus tayenus (Richardson, 1846), Lattice monocle bream Scolopsis taenioptera (Cuvier, 1830) and goatfish Upeneus sulphureus (Cuvier, 1829) were measured regarding length, weight and their maturity stages. The results shows that length-weight relationship for each species were P. tayenus W = 0.0324 L 2.7321, S. taenioptera W = 0.0366 L2.7262 and U. sulphureus W = 0.038 L2.7312.Monthly average GSI of P. tayenus and S. taenioptera indicated that the highest index occurred during SE monsoon while U. sulphureus on NW monsoon. Maturity stage analysis indicated that estimated of length at first maturity (Lm) were at 12.9 cmFL (U. sulphureus), 16.8 cmFL (S. taenioptera) and 19.4 cmFL (P. tayenus). Size frequency distribution shows that most of the fish were caught at immature cohorts. The diversity or evenness indices of ichtyofauna is also described as descriptors of community structure and be complemented with information on biological characteristics of those dominant species.Keywords: Demersal fish, dominant species, biological characteristics, north coast, Java
The estimates spawning potential ratio of three dominant demersal fish species landed in Tegal, north coast of Central Java, Indonesia DUTO NUGROHO; MUFTI P. PATRIA; JATNA SUPRIATNA; LUKY ADRIANTO
Biodiversitas Journal of Biological Diversity Vol. 18 No. 2 (2017)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d180258

Abstract

Nugroho D, Patria MP, Supriatna J, Adrianto L. 2017. The estimates spawning potential ratio of three dominant demersal fish species landed in Tegal, north coast of Central Java, Indonesia. Biodiversitas 18: 844-849. Java Sea is one of the important marine waters for fisheries purpose in Indonesia. The rich diversity of marine fish has been exploited for decades. Among them, demersal fish resource was commercially targeted by coastal fishers. The sustainability of demersal fishery is a crucial concern given the substantial economic contribution and its significant dependence of small-scale fishers for their livelihoods. The fishing intensity is considerable growing and tends to become threats their habitats. Three dominant species (Priacanthus tayenus, Scolopsis taeniopterus and Upeneus sulphureus) were selected in this study. To evaluate the vulnerability of these species to their bio-exploitation level, the spawning potential ratio (SPR) approach were applied. The calculation based on estimated length of first capture (Lc) indicates that SPR those demersal species occurred at less than 20%. These values indicate that existing fishery can be categorized as nearly fully exploited. Across broad range of species, 40% SPR is generally accepted as a proxy for Maximum Sustainable Yield (MSY) for recruitment overfishing in less resilience fish population.
Impact of climate change on potential distribution of xero-epiphytic selaginellas (Selaginella involvens and S. repanda) in Southeast Asia AHMAD DWI SETYAWAN; JATNA SUPRIATNA; DEDY DARNAEDI; ROKHMATULOH ROKHMATULOH; SUTARNO SUTARNO; SUGIYARTO SUGIYARTO; ILYAS NURSAMSI; WULAN RATNA KOMALA; PRAKASH PRADAN
Biodiversitas Journal of Biological Diversity Vol. 18 No. 4 (2017)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d180448

Abstract

Setyawan AD, Supriatna J, Darnaedi D, Rokhmatuloh, Sutarno, Sugiyarto, Nursamsi I, Komala WR, Pradan P. 2017. Impact of climate change on potential distribution of xero-epiphytic selaginellas (Selaginella involvens and S. repanda) in Southeast Asia. Biodiversitas 18: 1680-1695. Climate change is one of the greatest challenges for all life on earth, as it may become the dominant driver of changes in ecosystem services and biodiversity loss at the global level. Selaginella is a group of spike-mosses that seem easily affected by global warming (climate change) due to requiring water medium for fertilization. However, some species have been adapted to dry condition and may grow as epiphytes, such as S. involvens and S. repanda. Both species are commonly found in opposing a range of elevation. S. involvens is often found in high-altitude regions, whereas S. repanda is often found at lower-altitude regions. The difference in this altitudinal distributions is expected to limit redistribution mechanism of each species to adapt the climate change projections. This study model examines the potential geographic distribution of S. involvens and S. repanda under current climatic conditions and models the impact of projected climate change on their potential distribution. Future climate predictions are made with four detailed bioclimatic scenarios (i.e. RCP 2.6, RCP 4.5, RCP 6.0, and RCP 8.5) and three-time intervals (2030, 2050, 2080), which combine various climatic factors. In this modeling, it can be concluded that S. involvens and S. repanda can adapt to future climate change, and continue to be sustainable, although it is strongly influenced and shifting habitat distribution in some areas.
Vertical stratification of bird community in Cikepuh Wildlife Reserve, West Java, Indonesia ROLISKA VIRGO DINANTI; NURUL LAKSMI WINARNI; JATNA SUPRIATNA
Biodiversitas Journal of Biological Diversity Vol. 19 No. 1 (2018)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d190120

Abstract

Dinanti RV, Winarni NL, Supriatna J. 2018. Vertical stratification of bird community in Cikepuh Wildlife Reserve, West Java, Indonesia. Biodiversitas 19: 134-139. The complexity of heterogeneous strata can be used to determine the distribution of resources in bird communities. However, deforestation causes damage and may disturb the bird community in the forest. Cikepuh Wildlife Reserve in West Java, Indonesia is an example of degraded forest due to deforestation. Illegal logging in the area leads to approximately 7000 hectares of forest conversion into a plantation area. This study was conducted to test the hypothesis of the differences in the diversity of birds in each stratum of vegetation and the differences in the diversity of birds in forest and plantation. The study was conducted in March 2016. Point count method was used for bird surveys. The calculation of Shannon-Wiener diversity index showed that forest had a higher diversity of birds (H? = 3.09) than plantation (H? = 2.78). Based on the rank abundance graph, each vegetation stratum had a different type of curve. The middle canopy layer had the highest bird abundance while the emergent and understory layers had the lowest abundance.
Post-release adaptation of Javan gibbon (Hylobates moloch) in Mount Malabar Protected Forest, West Java, Indonesia ANTON ARIO; AGUS PRIYONO KARTONO; LILIK BUDI PRASETYO; JATNA SUPRIATNA
Biodiversitas Journal of Biological Diversity Vol. 19 No. 4 (2018)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d190439

Abstract

Ario A, Kartono AP, Prasetyo LB, Supriatna J. 2018. Post-release adaptation of Javan gibbon (Hylobates moloch) in Mount Malabar Protected Forest, West Java, Indonesia. Biodiversitas 19: 1482-1491. Post-release adaptation study of Javan gibbon (Hylobates moloch) was conducted in twelve months from April 2016 to March 2017 in the Mount Malabar Protected Forest, West Java. We studied eleven Javan gibbons released between March 2014 to August 2016. The purpose of this study was to assess the adaptive ability of the released Javan gibbons. Data collection was conducted by focal animal sampling method with 5-minute interval recording time and ad libitum method. The average time allocation of Javan gibbon activities was the following: feeding 23.02±1,62%; moving 26.95±3.07%; resting 40.88±3.81%; socializing 7.56±3.55%; sexual 0.26±0.24%; and vocalizing 0.95±0.21%. We compared activity allocation data from this study and those from wild Javan gibbons and found similarities as follows: 47.60% at a family of Jowo-Bombom-Yani-Yudi, 62.45% at a pair of Moly-Nancy, 51.70% at a pair of Robin-Moni and 52.58% at a family of Mel-Pooh-Asri. Post-release adaptation of Javan gibbon is influenced by internal and external factors. Internal factor includes the ability of each individual to develop wild behavior according to its gender and age group, in terms of natural fruit consumption, brachiation movement, morning calls and alarm calls, as well as affiliative bonds among individuals. External factors include the ability of Javan gibbon to adapt to the environment, namely weather conditions and human presence.
Co-Authors Abinawanto Adam Rachmatullah Advent Tri Joy Simamora Ady Suryawan Afifa Hasna Agus Priyono Kartono AGUS PRIYONO KARTONO AHMAD DWI SETYAWAN AHMAD DWI SETYAWAN AHMAD DWI SETYAWAN AHMAD DWI SETYAWAN AHMAD DWI SETYAWAN AHMAD DWI SETYAWAN AHMAD DWI SETYAWAN AHMAD DWI SETYAWAN AHMAD DWI SETYAWAN Aldri Frinaldi Andayani, Noviar Andrew Engilis Anik Budhi Dharmayanthi Anita Mayasari ANOM BOWOLAKSONO ANTON ARIO Anton Ario Anton Ario Anton Ario ARI PITOYO ARI PITOYO Ario, Anton Asri Dwiyahreni Ayu Mulia Sundari BUDIAWATI SUPANGKAT ISKANDAR CHRIS MARGULES Chris Margules D. DARNAEDI DEDE MULYANTO DEDY DARNAEDI DEDY DARNAEDI DEVI MAYANG AURINA Dewi Malia Prawiradilaga Djoko Harmantyo Djoni Wibowo DUTO NUGROHO DUTO NUGROHO EKO BAROTO WALUJO EKO BAROTO WALUJO ELIZABETH NOVI KUSUMANINGRUM Erwin Nurdin FARHAN MUHAMMAD FARIZ PRADHANA ADIL FADZILAH Fetty Asmaniaty Gathot Winarso GILANG DWI NUGROHO Gunawan Gunawan H.M.H. Bintoro Djoefrie H.M.H. Bintoro Djoefrie, H.M.H. Bintoro Habiburrachman A.H. Fuad Haryoto Kusnoputranto HASNA KHAIRUNNISA Heatubun, Charlie D. Henderite L. Ohee Hisyam Musthafa, Hisyam Horti Alam ILYAS NURSAMSI ILYAS NURSAMSI ILYAS NURSAMSI ILYAS NURSAMSI ILYAS NURSAMSI Ismail Ismail Ismail Ismeth Emier Osman J. Supriatna JOHAN ISKANDAR Karen M. C Rowe KOSUKE MIZUNO Kuswata Kartawinata KUSWATA KARTAWINATA Kuswata Kartawinata Kusworo, Ahmad LILIK BUDI PRASETYO LILIK BUDIPRASETYO Liling, Irman Luke Bloch Luky Adrianto LUTHFIRALDA SJAHFIRDI MAIKEL SIMBIAK Marina Silalahi MINI AMBARWATI KUSUMA DEWI MUFTI P. PATRIA MUFTI P. PATRIA Mufti Petala Patria MUHAMMAD INDRAWAN MUHAMMAD INDRAWAN MUHAMMAD INDRAWAN MUHAMMAD AMJAD HAMY FAQIIH MUHAMMAD INDRAWAN Muhammad Kamal MUHAMMAD NUR SULTON MUHAMMAD REYNALDY PUTRAYUDA Najmi Firdaus NIKEN DHARMAYANTI NISYAWATI Nisyawati Nisyawati Nisyawati NISYAWATI NISYAWATI Nisyawati Nisyawati Nisyawati Nisyawati NISYAWATI NISYAWATI Nisyawati Nisyawati, Noverita Dian Takarina Nurbaeti NURUL LAKSMI WINARNI Onrizal Onrizal Pahrian Ganawira Siregar Perbatakusuma, Erwin A. Perbatakusuma, Erwin A. PRABANG SETYONO PRABANG SETYONO PRAKASH PRADAN PRAKASH PRADHAN PRAKASH PRADAN Rachael L. Joakim Rahma Suryaningsih Raldi Hendro Koestoer Randall C Kyes Rauri C. K. Bowie Rokhmatuloh, Rokhmatuloh ROLISKA VIRGO DINANTI Rosid, Mohammad Syamsu Rudy Parluhutan Tambunan SANDY LEO Sapta Suhardono Saptarining Wulan Saptarining Wulan, Saptarining Slamet Santosa Sudjito, Herwasono Sudjito, Herwasono SUGENG BUDIHARTA SUGENG BUDIHARTA SUGENG BUDIHARTA SUGIYARTO SUGIYARTO SUGIYARTO SUGIYARTO SUGIYARTO SUGIYARTO SUGIYARTO SUGIYARTO SUGIYARTO SUGIYARTO SUNARTO SUNARTO SUNARTO SUNARTO SUNARTO SUNARTO SUNARTO SUNARTO SUNARYO Sunaryo SUTARNO SUTARNO SUTARNO SUTARNO SUTARNO SUTARNO SUTARNO SUTARNO SUTARNO SUTARNO Tjiong Giok Pin TRI CAHYO UTOMO TRI CAHYO UTOMO TRI EDHI BUDHI Soesilo Tri Haryoko Wijayanto, Iwan H. Wijayanto, Iwan H. Wikanti Asriningrum WULAN RATNA KOMALA Yance de Fretes Yasman Yasman Yohanna Yohanna YULITA KUSUMADEWI Yundari, Yundari Yusi Rosalina Yusi Rosalina Yusi Rosalina ZAHRA HANUN Zuliyanto Zakaria ‪Melisnawati H. Angio