Article Per Year (5 Year)
p-Index From 2021 - 2026
7.82
P-Index
This Author published in this journals
All Journal Plumula : Berkala Ilmiah Agroteknologi Journal of Degraded and Mining Lands Management Jurnal Solum Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat Agriprima : Journal of Applied Agricultural Sciences Jurnal Penelitian Pendidikan IPA (JPPIPA) BIOEDUSCIENCE Jurnal Pertanian Agros Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) Conference on Innovation and Application of Science and Technology (CIASTECH) Jurnal Abdimasa Seminar Nasional Lahan Suboptimal Jurnal Agronomi Tanaman Tropika (JUATIKA) Jurnal Pembelajaran dan Biologi Nukleus Jurnal Agrium Agro Bali: Agricultural Journal Metafora: Education, Social Sciences and Humanities Journal Community Development Journal: Jurnal Pengabdian Masyarakat Biofarm : Jurnal Ilmiah Pertanian Journal of Social Science Jurnal Pengabdian kepada Masyarakat Nusantara Nusantara Science and Technology Proceedings GUYUB: Journal of Community Engagement Al-Khidmah Jurnal Pengabdian Masyarakat Envirotek : Jurnal Ilmiah Teknik Lingkungan JURNAL HUTAN TROPIS Jurnal Pengabdian Masyarakat Nusantara TRIMAS: Jurnal Inovasi dan Pengabdian Kepada Masyarakat Journal of Social Science Acta Solum
Priyadarshini, Rossyda
Universitas Pembangunan Nasional Veteran Jawa Timur
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Other

Published : 61 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 61 Documents
Search

 3   4   5   6   7 
Effect of Azotobacter sp. and Cow Manure on Nitrogen Availability in Saline Soil, Root Length, and Vitamin C Content of Tomato Aulifia Nisak Aisyah; Rossyda Priyadarshini; Siswanto Siswanto
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 6 (2025): December 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i6.2111-2119

Abstract

Nitrogen is a macronutrient for plants, but its availability in saline soil is a limiting factor, making it difficult to cultivate plants. This study aims to examine the effect of the combination of Azotobacter sp. and cow manure in increasing the available N of saline soil, and to obtain the best combination in increasing the growth of tomato plants in saline soil. This research was conducted in the greenhouse and laboratory of UPN "Veteran" Jawa Timur. Saline soil samples came from the Wonorejo Mangrove land, Surabaya. Azotobacter sp. isolates came from the roots of Wonorejo mangrove trees. The study used a Completely Randomized Design with 2 factors with 3 replications. First factor was addition of Azotobacter sp., consisted of A0 (no addition of Azotobacter), and A1 (addition Azotobacter at 107 CFU/mL. Second factor was cow manure (K) involved 4 levels (in ton/ha): A0 (0); K1 (20); K2 (30); K3 (40). The results of this research showed that application of Azotobacter sp. and cow manure affected the parameters of available N, EC, pH and vitamin C content, but did not affect the parameters of plant root length. Combination of Azotobacter 107 CFU/mL + 40 tons/ha of cow manure produced the best available N of 246.48 ppm. The highest vitamin C content was 36.75 mg/g in the treatment of 107 CFU/mL Azotobacter + 30 ton/ha of cow manure. Cow manure decreased soil EC and increased soil pH.
Application of Arbuscular Mycorrhizal Fungi and Manure to Improve Saline Soil Characteristics Maghfirotun Ni'mah Hidayati; Rossyda Priyadarshini; Purnomo Edi Sasongko
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 15 No. 2 (2026): April 2026
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v15i2.562-570

Abstract

Soil salinity can damage soil structure due to its high sodium chloride content, leading to soil erosion and reduced aeration, which decreases the ability of plants to absorb water and inhibits plant growth. One approach to overcome this problem is by improving the chemical properties of saline soil; therefore, research on the application of arbuscular mycorrhizal fungi and manure is needed. This study aimed to determine whether the addition of manure and arbuscular mycorrhizal fungi at appropriate rates could improve the chemical properties of saline soil. A completely randomized design (CRD) with two factors was used, in which the first factor was the dose of arbuscular mycorrhizal fungi with four levels and the second factor was manure application with two levels, each repeated three times, resulting in eight treatments and 24 experimental units. The results showed that although the application of mycorrhizal fungi and manure did not significantly affect soil pH or electrical conductivity (EC), a single factor manure treatment increased soil pH and reduced EC values, while a single factor treatment of arbuscular mycorrhizal fungi reduced soil EC values. The combined application of manure and arbuscular mycorrhizal fungi significantly increased N-available (NH₄⁺ and NO₃⁻) during the first week after the application of 20 ton/ha of manure and 105 CFU/mL of arbuscular mycorrhizal fungi (M1K1).
Intervensi Partisipatif melalui Pemasangan Palang Jejak Alam untuk Penguatan Identitas Visual Desa Wisata Tompo Bulu, Pangkep Zainal Abidin Achmad; Rossyda Priyadarshini; Muchlisniyati Safeyah; Wahyu Mustiko Sejati
Al-Khidmah Jurnal Pengabdian Masyarakat Vol. 6 No. 2 (2026): MEI-AGUSTUS
Publisher : Institute for Research and Community Service (LPPM) of the Islamic University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56013/jak.v6i2.5021

Abstract

Village tourism is increasingly viewed as strategic because it not only drives economic growth but also preserves culture and the environment. Tompo Bulu Village in Pangkep Regency has natural tourism potential in the form of hills, trekking trails, waterfalls, and caves, but the lack of navigation infrastructure makes it difficult for tourists. Through the 2025 National Community Service Program (KKN Kebangsaan XIII), participatory community service was conducted, involving students and local residents in installing nature trail markers. The implementation method included field observation, village deliberations, design, construction, and installation of signs, as well as evaluation through route trials. Additionally, pre- and post-tests were conducted to gauge community understanding of the importance of tourism navigation and sustainable destination management. The results of the activity resulted in the installation of 11 identity boards and directions at strategic points leading to Mount Batu Pute, Tombolo Waterfall, and Goa Passosoang Tunabbaka. The impact was seen in increased tourist accessibility, strengthened visual identity of the destination, digital promotion through social media, and the growth of local micro-business opportunities. Theoretical analysis shows that this simple intervention supports the principles of Community-Based Tourism, strengthens the destination's image, and paves the way for sustainable ecotourism. This activity faced limitations of time, funding, and material durability, yet it succeeded in making a real contribution to the transformation of Tompo Bulu into a tourist village.
Biodiversity and Carbon Storage Potential in the Lambosir Hill Area, Mount Ciremai National Park, Kuningan Regency, West Java Province Alvin Amanda Simamora; Bakti Wisnu Widjajani; Rossyda Priyadarshini
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 7 No. 3 (2025): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 7 No. 3 September 2025
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v7i3.4393

Abstract

The potential for biodiversity, including a variety of tree, shrub, and bush species, is particularly pronounced in ecosystems characterized by high biodiversity, which influences the soil's capacity to retain water—the greater the species diversity within an ecosystem, its ability to sequester CO2 increases. Lambosir Hill is one of the hills located within the protected forest area of Mount Ciremai National Park (TNGC). This study aimed to assess the level of plant vegetation diversity on Lambosir Hill and examine the relationship between biodiversity and carbon stocks. This study was conducted in Lambosir Hill, Mount Ciremai National Park in Kuningan Province, West Java. This study began in November 2022 and ended in March 2023. Activities related to data processing were carried out at the Land Resources Laboratory, Faculty of Agriculture, National Development University “Veteran” East Java. The study results showed low diversity at the shrub level and moderate at the tree level. The highest carbon stock was found in Sonokeling and the weakest in Hamerang. The land use type, slope, and vegetation composition influence these values’ differences. These results show the importance of permanent vegetation in supporting carbon stocks and ecosystem stability. It is recommended that woody tree vegetation such as Sonokeling be preserved to maintain the sustainability of carbon reserves in this conservation area.
Analysis of Soil Salinity Distribution in the Wonorejo Mangrove Botanical Gardens, Surabaya Dinda Ramadhani Putri; Purnomo Edi Sasongko; Rossyda Priyadarshini
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 8 No. 1 (2026): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 8 No. 1 January 2026
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v8i1.4715

Abstract

Environmental factors, particularly salinity conditions, influence the function of mangrove forests. Salinity plays a crucial role in the growth, resilience, and zonation of mangrove species. Therefore, it is essential to analyze salinity levels. This study aims to assess salinity levels to determine their effect on soil fertility and to evaluate the influence of the distance from salinity sources in the Wonorejo Mangrove area. Soil sampling was conducted at distances ranging from 5 meters to 60 meters from the riverbank, along three designated paths: J1 (first path), J2 (second path), and J3 (third path). Both composite and intact soil samples were collected. Composite and intact soil samples were taken at intervals from 5 to 60 meters from the riverbank, with each path containing two sampling points, resulting in a total of six sample points (T1, T2, T3, T4, T5, T6), each repeated three times. The observed parameters included soil pH, electrical conductivity (EC), soil permeability, soil texture, cation exchange capacity, and organic carbon content. The results of the chemical and physical analyses of the mangrove forest soil samples indicate that salinity levels range from high to very high. This finding is evidenced by the lowest EC value recorded in soil sample T3U3, which was 15.9 dS/m, indicating high salinity.
The Effect of Interaction of Microbially Immobilized Biochar and Salinity Stress on Soil Chemical Properties (pH, EC, C-organic, and CEC) in Red Spinach (Amaranthus tricolor L.) Cultivation Nofia Wahyu Puspita; Rossyda Priyadarshini; Fitri Wijayanti
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 8 No. 2 (2026): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 8 No. 2 Mei 2026
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v8i2.5153

Abstract

Soil salinity reduces nutrient availability and inhibits plant growth. While red spinach (Amaranthus tricolor L.) exhibits tolerance to suboptimal conditions, its growth declines significantly under high salinity stress. This study evaluated the efficacy of microbially immobilized biochar in ameliorating the chemical properties of saline-stressed soil and enhancing red spinach growth. The experiment employed a Completely Randomized Design (CRD) with two factors: biochar dose (0, 15, 30, and 45 t ha⁻¹) and NaCl salinity levels (0, 4, 6, and 8 mS cm⁻¹), with three replications totaling 48 experimental units. Soil parameters measured included pH, electrical conductivity (EC), organic carbon (C), and cation exchange capacity (CEC) at 0 and 28 days after planting (DAP), while fresh plant weight was recorded at 28 DAP. Data were analyzed using ANOVA followed by a 5% Least Significant Difference (LSD) test. Results indicated that biochar application significantly influenced soil pH and CEC. The 30 t ha⁻¹ treatment yielded the highest pH (7.31) at 28 DAP, whereas the 45 t ha⁻¹ treatment achieved the maximum CEC (61.84 cmol kg⁻¹). NaCl stress significantly increased soil EC from 0.93 to 8.69 mS cm⁻¹ at the highest dose, while organic carbon remained unaffected by either treatment. Although the 15 t ha⁻¹ dose was optimal for pH improvement and the 45 t ha⁻¹ dose for CEC enhancement, the 45 t ha⁻¹ treatment overall proved most effective in improving the chemical properties of saline soil and supporting red spinach growth, maintaining stable pH, EC, CEC, and organic carbon values through 28 DAP.
Efficiency of Biochar and Bacillus sp. in The Remediation of Cadmium (Cd) Contaminated Soil Nur Aini Ahaddiyah; Rossyda Priyadarshini; Bakti Wisnu Widjajani
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 3: Jurnal Pembelajaran Dan Biologi Nukleus September 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i3.7730

Abstract

Background: Soil contamination occurs when chemical produced by humans pollute and alter the natural conditions of the soil. Contamination caused by heavy metals is very dangerous and can cause harm to the life of organisms through the food chain.  This study aims to determine the effectiveness of biochar and Bacillus sp in reducing Cd heavy metal levels. This study used contaminated soil with Cd levels of 2.59 ppm, pH 7.52, C-organic 1.30%, and CEC 18.35 Cmol/kg. Methodology: The research method used a factorial randomized block design with 2 treatment factors, each consisting of 3 levels: the first factor is biochar dosage, comprising B0 (without biochar), B1 (biochar 20 tons/ha, and B2 (biochar 40 tons/ha) and the second factor is bacterial concentration, comprising C0 (without Bacillus sp), C1 (Bacillus concentration 105), as well as C2 (Bacillus concentration 108). Further analysis if there are different ANOVA results, the BNJ 5% Test will be performed. Findings: the results showed that the combination of biochar 40 tons/ha with bacillus 105 (B2C1) was able to reduce Cd heavy metal levels by 52% over a 4-week incubation period, in addition to reducing heavy metal levels, it also increased soil pH. Cations that are on the surface of the biochar will exchange ions with heavy metals in the soil. Carboxyl –COOH functional groups found in biochar can be released as H+ ions, forming complexes with heavy metal ions and heavy metal ions will be bind to the surface of Bacillus sp. cells containing carboxyl groups, renderingthe the heavy metals unavailable.  Contribution: this study reveals the combination of biochar and Bacillus, where biochar provides an optimal microbial habitat, thuereby increasing remediation efficiency. In addition to knowing the interaction between organic materials with heavy metals and the development of natural and sustainable remediation
PENILAIAN STATUS KESUBURAN TANAH DI WISATA PACET HILL KABUPATEN MOJOKERTO Zumrotun Yogi Noviana; Maroeto Maroeto; Rossyda Priyadarshini
Jurnal Hutan Tropis Vol 13, No 4 (2025): Jurnal Hutan Tropis Volume 13 Nomer 4 Edisi Desember 2025
Publisher : Lambung Mangkurat University-Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jht.v13i4.24792

Abstract

Penelitian ini bertujuan untuk menganalisis sifat kimia tanah dan menentukan status kesuburan tanah pada kawasan Wisata Pacet Hill Kabupaten Mojokerto yang memiliki topografi berbukit dan rentan terhadap erosi serta pencucian hara. Analisis dilakukan terhadap pH, kapasitas tukar kation (KTK), kejenuhan basa, fosfor, kalium, dan karbon organik sebagai indikator utama produktivitas tanah. Hasil penelitian menunjukkan bahwa pH tanah berkisar masam hingga agak masam, KTK tergolong tinggi hingga sangat tinggi, dan kejenuhan basa bervariasi sangat luas dari sangat rendah hingga tinggi. Kandungan fosfor dan kalium menunjukkan distribusi yang tidak merata sesuai kondisi lereng dan vegetasi, sedangkan karbon organik relatif tinggi pada lokasi dengan tutupan vegetasi rapat. Berdasarkan metode matching, status kesuburan tanah di Pacet Hill berada pada kategori rendah hingga tinggi, dengan variasi yang dipengaruhi oleh ketinggian tempat, kemiringan lereng, serta akumulasi bahan organik. Elevasi rendah menunjukkan kesuburan lebih baik dibanding elevasi menengah dan tinggi yang mengalami pencucian basa lebih kuat. Hasil penelitian ini menegaskan perlunya pengelolaan berbasis konservasi melalui penambahan bahan organik, pengapuran, vegetasi penutup tanah, serta pengaturan aktivitas wisata untuk mempertahankan stabilitas kimia tanah dan keberlanjutan ekosistem kawasan wisata.
Pemanfaatan Kascing Berbasis Kearifan Lokal untuk Meningkatkan Kualitas Pupuk Organik Maroeto Maroeto; Rossyda Priyadarshini; Dewi Puspa Arum; Agung Winarno; Ken Bening Jiwa Jeni
GUYUB: Journal of Community Engagement Vol 6, No 4 (2025): Desember
Publisher : Universitas Nurul Jadid

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33650/guyub.v6i4.13375

Abstract

This community service program was implemented at the Sabilus Salam Sharia Cooperative, Notorejo Hamlet, Wonosalam District, Jombang Regency, East Java. It involved 25 farmers and 10 cooperative members, and was facilitated by a service team consisting of four lecturers and one master’s (S2) student. The uniqueness of this program lies in the utilization of kascing (earthworm castings) based on the local wisdom of Wonosalam, integrated with the use of local organic waste and the strengthening of cooperative institutions through a Participatory Action Research (PAR) approach. This distinguishes the program from conventional organic fertilizer training, which is typically one-directional. The objective of the activity was to enhance farmers’ capacity to produce and apply both liquid and solid organic fertilizers based on kascing, in order to reduce dependence on chemical fertilizers and improve soil quality. The methods employed included socialization, participatory training, field assistance, and experimental demonstration plots. Standardized laboratory test results indicated an increase in soil pH from 3.25 to 5.42, organic carbon (C-organic) from 0.23% to 0.53%, as well as improvements in the levels of nitrogen, phosphorus, and potassium. Post-training evaluation showed that 84% of participants understood the stages of kascing fertilizer production, and 72% had applied it on their respective farms. Overall, the program proved effective in measurably improving soil quality and strengthening the independence of farmers and the cooperative in developing sustainable agriculture based on local resources..
Humic Acid and Nitrogen Fertilizer Effects on Nitrogen Availability and Bacterial Population in Sipramin-Affected Paddy Soil Melinda Trisya Yulianto; Wanti Mindari; Rossyda Priyadarshini; Dzarifah Zulperi; M. Ghufron Chakim
Acta Solum Vol. 4 No. 3 (2026): July 2026
Publisher : Department of Soil, Faculty of Agriculture, Lambung Mangkurat University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/actasolum.v4i3.3590

Abstract

The accumulation of sodium (Na) due to the continuous use of sipramin reduces the physical, chemical, and biological quality of soil, thereby affecting nitrogen (N) availability and microbial activity. This study aimed to evaluate the combined effect of humic acid and different nitrogen fertilizer sources on nitrogen availability (NH₄+ and NO₃-) and bacterial population dynamics in sipramin-affected paddy soil. The experiment was conducted under greenhouse conditions using a completely randomized factorial design with two factors: humic acid doses (0, 20, 40, and 60 kg ha-¹) and nitrogen fertilizer sources (NPK Phonska, urea, KNO₃, and MAP) at an equivalent rate of 92 kg N ha-¹. Observations included NH₄+, NO₃-, and total bacterial populations, and data were analyzed using analysis of variance (ANOVA). The results showed that the interaction between humic acid and nitrogen fertilizer did not significantly affect nitrogen availability. However, both factors individually showed significant effects on NO₃- availability, indicating their role in influencing nitrogen dynamics. Bacterial populations increased from 7 to 21 Day After Treatment (DAT) and decreased at 42 DAT, reflecting temporal microbial dynamics during incubation. Although changes in bacterial populations coincided with variations in nitrogen forms, this relationship could not be directly confirmed due to the limitation of total culturable bacteria analysis. These findings highlight the importance of humic acid and nitrogen fertilizer management in regulating nitrogen dynamics under high-Na soil conditions, while further studies on specific microbial groups are needed to better understand the underlying mechanisms.
Co-Authors . Astuti A Astuti A. Hamzah Adin Kurniawan Adnan, Achmad Agung Winarno Agustina, Zalfa Nurrahmah Ahmad Iskandar Alexandra Neovita Tanaya Aliza Masayu Ramadhani Alvin Amanda Simamora Amir Hamzah Antono Landjar Patoman Arifin , Moch Arifin, Moch Arifin, Mochamad Arohman, Dennes Fajar Arum, Dewi Puspa Asrianto, Rifky Asrianto Astuti Astuti Aulifia Nisak Aisyah B.W. Widjajani Bakti Wisnu Widjajani Bakti Wisnu Widjajani Bella Agit Solekhah Budi, Setyo Dewanti, Felicitas Deru Dewi Puspa Arum Dinda Ramadhani Putri Diyaurrachman, Diyaurrachman Dzarifah Zulperi Elly Syafriani Euis Nurul Hidayah Farida Pulansari Fitri Wijayanti Griselda, Merry Haq, Jelita Arinal Hendra Usnaini Hendra Usnaini Ida Ayu Putu Sri Widnyani Ida Retno Moeljani Ir, MT., Siswanto Jeni, Ken Bening Jiwa Joko Suyono Juli Santoso Juliawan, Enry Kadir, Muhammad Fajar Abdul Kamur, Sudarwin Kathlyne Septrilisia Princes Ken Bening Jiwa Jeni Ken Bening Jiwa Jeni L, Irwan Laksono Trisnantoro M Nur Faiz Septiawan M. Ghufron Chakim M. Yuda Namuri Maghfirotun Ni'mah Hidayati Maroeto Maroeto Maroeto Maroeto Maroeto Maroeto Maroeto Maroeto Maroeto Medina Uli Alba Somala, Medina Uli Alba Melda Lely Marthalina Melinda Trisya Yulianto Moch Arifin Moch. Arifin Mohammad Idhom Muchlisniyati Safeyah Muhammad Dzikrullah Muhammad Dzikrullah Muhammad Muhammad Muhammad Syaiful Nofia Wahyu Puspita Novirina Hendrasarie Nur Aini Ahaddiyah Nur Ramadhan, Ashary Parwi Parwi Priambodo, Alvian Rafif Princes, Kathlyne Septrilisia Purnomo Edi Sasongko Purwadi Purwadi Putri, Peggy Rahmawati Reza Hasan Suhari Ricky Indri Hapsari Rika Rismayang Risnawati Risnawati Sagran, Arif Abdullah Sahbudin Sahbudin Santoso, Wahyu Septiawan, M Nur Faiz Setyo Budi Santoso Silvana Dwi Nurherdiana Siswanto Sri Umi Lestari Subagiyo, Awalia Azizah Suntoro W.A Suwandi Suwandi Tanaya, Alexandra Neovita Tri Murjoko urniawan, Ahmad Triantono K Wahyu Fikrinda Wahyu Mukti Jaya Nata Wahyu Mustiko Sejati Wahyu Santoso Wahyu Santoso Wahyu Santoso Wahyu Santoso Wahyu Santoso Wahyu Santoso Wanti Mindari Widjajani, Bakti Wisnu Yanuar Yogha Pradana Zainal Abidin Achmad Zulham Yahya Zumrotun Yogi Noviana