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All Journal Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Science and Technology Indonesia Jurnal Penelitian Sains IJEMS (Indonesian Journal of Environmental Management and Sustainability) QARDHUL HASAN: MEDIA PENGABDIAN KEPADA MASYARAKAT Berkala Penelitian Hayati Sriwijaya Bioscientia Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat BIOVALENTIA: Biological Research Journal Jurnal Pepadu Jurnal Manusia dan Lingkungan

Elisa Nurnawati

Biology Department, Faculty Of Mathematics And Natural Sciences, Sriwijaya University, Indonesia

Author-ID : 3516002

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 Economics, Econometrics & Finance Education Energy Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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POTENCY OF ENDOPHYTIC FUNGI ISOLATED FROM Muntingia calabura AS ANTIFUNGAL SUBSTANCES AGAINST Candida parapsilosis Agung Bimantara; Hary Widjajanti; Elisa Nurnawati
BIOVALENTIA: Biological Research Journal Vol. 8 No. 2 (2022)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24233/biov.8.2.2022.226

Alternative is needed to overcome the problem of dandruff caused by C. parapsilosis. Endophytic fungi isolated from plants are capable of synthesizing compounds to produce various secondary metabolites. This study aimed to obtain the most active endophytic fungal isolates, determine the class of compounds, and determine the antifungal activity of the endophytic fungi (M. calabura) against C. parapsilosis. Fifteen isolates of endophytic fungi isolated from M. calabura were coded FDK1-FDK15. There was a color change in the media after 30 days of cultivation isolates of fungi. FDK4 and FDK13 have potential as antifungals. FDK13 fungal extract had the highest inhibition zone diameter of 20.00 mm. 20 eluates were obtained from the isolation of com-pounds (Thin Layer Chromatography), FDK 131, 1314, 1317, and 1320 eluates are compounds of the terpenoid group and FDK1316 eluates are phenol group compounds that are active in inhibiting yeast growth. FDK1317 was the most active compound isolate in inhibiting the growth of C. parapsilosis with an inhibition zone diameter of 12.5 mm.

POTENTIAL OF ACTIVE COMPOUNDS LEAVES OF MANGO PARASITE (Dendrophthoe pentandra (L). Miq) AS ANTIFUNGAL M.Ridha Mauludi; Harry Widjajanti; Elisa Nurnawati
BIOVALENTIA: Biological Research Journal Vol. 8 No. 1 (2022)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Infection is a disease that is easily found in tropical areas such as Indonesia. The causes of infection that are easily found include infections due to fungi. One of the fungi that causes many infections is the Candida fungus. Tropical drugs commonly used to treat cutaneous candidiasis include nystatin, clotrimazole, miconazole, ketoconazole and other azoles. However, antifungal drugs have limitations, such as severe side effects, poor penetration into certain tissues, and the emergence of resistance. To overcome the negative effects caused by these synthetic antifungal drugs, it is necessary to explore natural antifungal drugs. One of the plants that has the potential as a medicinal plant is the mango parasite plant (Dendrophthoe pentandra (L.) Miq) which is a parasitic plant that attaches to the host which has the potential as herbal medicine. Research on the potential of active compounds in the leaves of mango parasite (Dendrophthoe pentandra (L). Miq) as antifungals has been carried out from November 2020 to June 2021 at the Genetics and Biotechnology Laboratory, Biology Department, FMIPA Sriwijaya University. The purpose of this study was to obtain fractions that had antifungal activity, to obtain isolates that had antifungal activity, what active compounds were present in the leaves of the mango parasite as antifungal, and to determine the minimum inhibitory concentration of the fungus Candida albicans. Based on research that has been carried out with methanol, n-hexane and ethyl acetate extracts that are active as antifungals, namely n-hexane and ethyl acetate extracts with an n-hexane inhibition zone diameter of 12 mm while ethyl acetate is 10 mm. Then purification of the n-hexane and ethyl acetate fractions was carried out using gravity column chromatography and the n-hexane fraction obtained two pure compounds that were active as antifungals, namely isolate N-1 with a diameter of 12 mm and N-4 with a diameter of 10 mm. Two pure acetate fractions were obtained which were active as antifungals, namely isolates E-1 with a diameter of 10 mm and E 5 with a diameter of 12 mm. Furthermore, the results of the eluate were tested by MIC and thin layer chromatography (TLC). The MIC results on isolates N-1, N-4, and E-1 were able to inhibit at a concentration of 500 ppm and were classified as strong. Meanwhile, isolate E-5 was able to inhibit at a concentration of 1000 ppm which was classified as moderate. The TLC results showed color spots on isolate N-1 which were blue, namely terpenoids, while in isolate N-4 which was orange in color were alkaloids, while in isolate E-1, the color was phenolic yellow, while in isolate E-5, which was purple, it was group terpenoids. The results of the bioautography of isolate N-1 with R¦ value: 0.9, isolate N-4 with R¦: 0.6, isolate E-1 with R¦ value: 0.8, and isolate E-5 with R¦ value: 0,9.

Antibacterial Activity of Endophytic Fungi from Sembukan (Paederia foetida L.) Leaves Hary Widjajanti; Christina Vivid Handayani; Elisa Nurnawati
Science and Technology Indonesia Vol. 6 No. 3 (2021): July
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

The antibiotic resistance of phatogenic bacteria has become a serious health problem and has encouraged the search for novel and effective antimicrobial metabolites. Meanwhile, endophytic fungi have great potential as a natural source for antimicrobial agents. The endophytic fungi that live in plant tissue produces secondary metabolites which potentially act as an antibacterial compound. The isolation of fungi for antibacterial sources reduces the large amount of plant as a source of antibacterial agents. Hence, this study aims to obtain endophytic fungi isolates from Paederia foetida L. that are capable of producing secondary metabolites as antibacterial, carry out in vitro tests to verify the antibacterial properties of secondary metabolites of the Paederia foetida L. endophytic fungi, and identify the potential of Paederia foetida L. endophytic fungi in producing antibacterial compounds. The antibacterial activity was tested against Escherichia coli ATCC8739 and Staphylococcus aureus ATCC6538 while seven isolates of endophytic fungi that potentially produced antibacterial were obtained from Sembukan (P. foetida L.). The results showed that antibacterial activities of SL1, SL4 and SL6 secondary metabolites against S. aureus ATCC6538 and E. coli ATCC8739 were moderate to strong activities. Furthermore, the Minimum Inhibition Concentration (MIC) of secondary metabolites extract of SL1 against S. aureus ATCC6538 value was 250 ????g/mL while the values of MIC extract of SL4 against S. aureus ATCC6538 and E. coli ATCC8739 were 125 ????g/mL and 250 ????g/mL respectively and MIC extract of SL6 against E. coli ATCC8739 value was 125 ????g/mL. The secondary metabolites extract of SL1 isolate were alkaloid and tannin, SL4 were phenolic and alkaloid while SL6 isolate were alkaloid and terpenoid. Hence, endophytic fungi SL1 isolate was identified as Fusarium sp., SL4 as Dematophora sp., and SL6 isolate as Acremonium sp.

Optimization of Antibacterial Production of Endophytic Fungi with Various Sources of C, N, and pH using The Response Surface Methodology Hary Widjajanti; Elisa Nurnawati; Muharni; Eca Desriana Zahwa
Science and Technology Indonesia Vol. 7 No. 2 (2022): April
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Secondary metabolites extract of McB1 endophytic fungi from gelam (Melaleuca cajuputi Powell.) leaves have a high potential antibacterial activity against Escherichia coli ATCC8739 and Staphylococcus aureus ATCC6538 with flavonoids and phenol as bioactive compound. The low production of secondary metabolites extract in the cultivation stage and the high potential antibacterial activity of bioactive compounds produced by McB1 endophytic fungi require special treatment for optimize the secondary metabolites product. This is possibly achieved by optimizing the composition of the cultivation media, where various sources of carbon, nitrogen, and pH produce different amounts and classes of secondary metabolites. The objectives of the research to obtain the optimum interaction between sources of carbon, nitrogen, and pH for the production of secondary metabolite extract using Response Surface Methodology (RSM). The results showed that the highest extract (0.25 g) with the composition of sucrose as carbon source, yeast extract as nitrogen source, and pH 6. Based on the optimization of the medium with a variation of 4.5 gL-1 sucrose, 0.48 gL-1 yeast extract, and pH 6.1 yielded 0.34 g of secondary metabolites extract of McB1 endophytic fungi. The chromatogram profile of the optimized secondary metabolite extract showed the presence of flavonoids, phenols, terpenoids, and tannins.

PENDAMPINGAN PEMANFAATAN APLIKASI WORDWALL SEBAGAI GAME BASED LEARNING PADA GURU-GURU SD Jurnal Pepadu; Evi Yuliza; Putra Bahtera Jaya Bangun; Robinson Sitepu; Elisa Nurnawati; Fitri Maya Puspita; Sisca Octarina; Indrawati
Jurnal Pepadu Vol. 4 No. 1 (2023): Jurnal Pepadu
Publisher : LPPM UNIVERSITAS MATARAM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/pepadu.v4i1.2231

Wordwall adalah aplikasi berbasis web yang dapat digunakan untuk membuat media pembelajaran seperti kuis, menjodohkan pasangan, anagram, acak kata, pencarian kata dan mengelompokkan. Kegiatan pengabdian kepada masyarakat ini bertujuan untuk mengenalkan aplikasi wordwall bagi guru-guru sebagai game based learning sehingga proses pembelajaran menjadi terstruktur, terarah dan menarik. Melalui kegiatan pengabdian ini, guru-guru dapat memahami aplikasi wordwall dan dapat mengaitkan dengan persoalan materi pelajaran. Pada kegiatan pengabdian kepada masyarakat ini diberikan pendampingan pemahaman aplikasi wordwall sebagai based learning sehingga proses pembelajaran menjadi menyenangkan, menarik dan inovatif. Metode yang diterapkan dalam kegiatan pendampingan ini adalah melalui ceramah dan diskusi. Kegiatan pengabdian kepada masyarakat pada guru-guru SD terdiri dari 3 tahap, yaitu pemberian materi, diskusi dan evaluasi. Hasil dari kegiatan pengabdian kepada masyarakat memberikan peningkatan pemahaman guru-guru SD terhadap aplikasi wordwall sebagai based game learning sehingga menciptakan proses pembelajaran yang bervariasi, menarik dan inovatif.

Bioadsorpsi zat warna direct red 80 menggunakan bakteri indigen dari limbah industri kain jumputan Mega Tiara; Muharni Muharni; Elisa Nurnawati
Sriwijaya Bioscientia Vol 2 No 2 (2021)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24233/sribios.2.2.2021.350

Industri kain jumputan umumnya menggunakan zat warna sintetis golongan azo yang sulit didegradasi. Keberadaan limbah zat warna sintetis di lingkungan dapat mengganggu estetika, merusak ekosistem perairan dan kesehatan. Oleh karena itu diperlukan adanya upaya untuk melakukan biodekolorisasi melalui proses bioadsorpsi yang berpotensi menurunkan zat warna. Uji kemampuan bakteri indigen dalam dekolorisasi zat warna Direct Red 80 menggunakan metode spektrofotometri, dan analisis menggunakan Kromatografi Lapis Tipis. Peningkatan kemampuan adsorpsi oleh masing-masing bakteri memerlukan adanya optimasi parameter lingkungan. Diantara 8 bakteri indigen yang digunakan terdapat 5 bakteri yang memiliki kemampuan bioadsorpsi, dan persentase tertinggi yaitu Pseudomonas stutzeri BD 05 dan Bacillus tropicus BD 01. Pseudomonas stutzeri BD 05 memiliki kemampuan adsorpsi yang lebih tinggi dibandingkan dengan Bacillus tropicus BD 01 yakni sebesar 92,48% sedangkan Bacillus tropicus BD 01 dengan persentase 89,52%. Analisa pola kromatogram dari hasil proses bioadsorpsi masing-masing bakteri tidak mengalami perubahan nilai Rf.

Isotherm and Thermodynamics Study of Congo Red and Procion Red Adsorption over Natural and Zn/Fe Pillared Bentonite Desnelli Desnelli; Heni Yohandini; Elisa Nurnawaty; Poedji Loekitowati Hariani
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 7, No 2 (2022): June 2022
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v7.i2.51

The effect of initial Congo Red and Procion Red concentration on isotherm adsorption and thermodynamic adsorption study using natural and Zn/Fe Pillared bentonite have been conducted. The adsorbents were also characterized by Fourier transform infrared (FTIR), X-Ray Diffraction (XRD), and Scanning electron microscope-energy dispersive X-Ray analysis (SEM-EDX). The study showed that the optimum dye removal of Congo Red and Procion Red was obtained at the initial dye concentration of 80 mg/L. The adsorption isotherm study showed that the Congo Red and Procion Red adsorption on natural and Zn/Fe Pillared bentonite followed the Freundlich isotherm model. The adsorption thermodynamics study showed that the adsorption of Congo Red and Procion Red occurred endothermically, wheraas the positive value of entropy indicated a high level of disorder of adsorption for both dyes. Furthermore, the FTIR, XRD, and SEM-EDX analysis showed that the pillarization of Zn/Fe on bentonite successfully well occurred, and it could be concluded that the adsorption of Congo Red using natural and Zn/Fe pillared bentonite showed a better adsorption process than Procion Red.

Isolation and Molecular Identification of Direct Red 80 Synthetic Dye Degradation Bacteria from Palembang Indonesia Jumputan Cloth Industrial Waste Muharni; Elisa Nurnawati; Heni Yohandini; Hary Widjajanti
Science and Technology Indonesia Vol. 8 No. 3 (2023): July
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2023.8.3.429-435

Industrial waste from Jumputan cloth production pose a significant risk to environmental safety due to their toxic synthetic dye content. Several studies have shown that the presence of bacteria in these materials plays a very important role in decolorization process of the constituent dye. Therefore, this study aims to isolate bacteria with the ability to decolorize direct red 80 from Jumputan cloth industrial waste. Characterization of isolates was carried out macroscopically, microscopically, and biochemically, followed by molecular identification using the 16S rRNA gene. Decolorization effects of the samples on red dye 80 were then assessed using a spectrophotometer at a maximum wavelength of 528 nm. The results showed that 6 bacteria isolates can degrade dye, with decolorizing power ranging from 26.33±0.94 - 73.67±0.47. The highest potential for decolorizing waste synthetic dye is seen in isolate BD 05. Phylogenetic analysis showed that there were 3 genera of bacteria among the samples obtained, namely Bacillus, Aeromonas, and Pseudomonas. These bacteria were closely related to Bacillus tropicus, Areomonas jandaei, and Pseudomonas stutzeri. Pseudomonas stutzeri (BD 05) has the highest potential in handling jumputan industrial waste.

ISOLASI, SKRINING DAN IDENTIFIKASI JAMUR XILANOLITIK LOKAL YANG BERPOTENSI SEBAGAI AGENSIA PEMUTIH PULP YANG RAMAH LINGKUNGAN (Isolation, Screening and Identification Xylanolytic Local Fungi that Potentially as Pulp Bleaching Agents) Elisa Nurnawati; Sebastian Margino; Erni Martani; Sarto Sarto
Jurnal Manusia dan Lingkungan Vol 21, No 3 (2014): November
Publisher : Pusat Studi Lingkungan Hidup Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jml.18559

ABSTRAKXilanase merupakan enzim yang berfungsi luas dalam bidang industri. Xilanase digunakan sebagai perlakuan awal proses pemutihan kertas di industri pulp dan kertas sehingga dapat mengurangi penggunaan senyawa klorin yang berbahaya bagi lingkungan. Xilanase yang cocok digunakan dalam industri pulp dan kertas seharusnya bebas dari aktivitas selulase. Jamur merupakan salah satu kelompok mikrobia yang mampu menghasilkan xilanase. Penelitian ini bertujuan untuk memperoleh isolat jamur unggul lokal penghasil xilanase dari tanah yang diasumsikan memiliki kandungan xilan tinggi. Tanah di sekitar industri pulp dan kertas; hutan akasia di Kab. Muara Enim dan Ogan Ilir, Sumatera Selatan; hutan Wanagama, Yogyakarta; penggergajian kayu di kota Palembang dan Yogyakarta serta TPA Palembang digunakan sebagai sumber isolat jamur. Berdasarkan skrining awal dalam media basal xilan agar diketahui bahwa dari 111 isolat jamur yang diperoleh, sebagian besar mempunyai potensi menghasilkan xilanase, akan tetapi hanya 12 isolat yang mempunyai kemampuan xilanolitik tinggi. Skrining selanjutnya dilakukan pada media basal xilan cair menunjukkan bahwa jamur yang diidentifikasi sebagai Chaetomium globosum, Penicillium simplicissimum, Aspergillus tamarii dan Monocillium sp. berpotensi unggul dalam menghasilkan xilanase dibandingkan isolat lainnya berdasarkan aktivitas enzim spesifiknya. Keempat jamur tersebut diketahui juga memiliki aktivitas lignolitik dan selulolitik. Oleh karena itu, xilanase yang diproduksi ke empat jamur tersebut berpotensi dikembangkan sebagai agen pemutih pulp.ABSTRACTXylanase has great potential for industry application. Application of xylanase can be done in pretreatment of pulp bleaching in the pulp and paper industry. Enzyme application can reduce the use of chlorine compounds that are harmful to the environment. Therefore, xylanase that used in pulp bleaching should be free of cellulase activity. Fungi are one of the groups of microbes that are able to produce xylanase. The aims of this study was to obtain local xylanase-producing fungal isolates from soil that assumed contain of xylan. The source of fungal isolates were the soil around the pulp and paper industry; Acacia forests in the district Ogan Ilir and Muara Enim, South Sumatra; Wanagama, Yogyakarta; sawmills in Palembang and Yogyakarta; and Palembang landfill. Based on the initial screening in the agar basal medium, 111 fungal isolates were obtained. Most of them were the xylanase-producing fungi, but only 12 fungal isolates that have high xylanolytic capabilities. Further screening was performed on xylan liquid basal medium. The results showed that the fungus identified as Chaetomium globosum, Penicillium simplicissimum, Aspergillus tamarii and Monocillium have higher xylanase specific activity than the other isolates. They were also have lignolytic and cellulolytic activities. Therefore, fungal xylanase potentially developed as a pulp bleaching agent.

ISOLASI DAN KARAKTERISASI JAMUR PENDEGRADASI ZAT PEWARNA TEKSTIL (Isolation and Characterization of dye-degrading Fungi) Erni Martani; Sebastian Margino; Elisa Nurnawati
Jurnal Manusia dan Lingkungan Vol 18, No 2 (2011): Juli
Publisher : Pusat Studi Lingkungan Hidup Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jml.18817

ABSTRAKIndustri tekstil tidak saja menghasilkan sandang yang merupakan kebutuhan primer manusia, tetapi juga mengeluarkan limbah yang berpotensi sebagai penyebab pencemaran lingkungan. Komponen utama limbah industri ini adalah berbagai jenis zat pewarna tekstil. Penelitian ini bertujuan untuk memperoleh isolat-isolat jamur yang mampu mendegradasi beberapa jenis zat pewarna tekstil. Isolasi dilakukan menggunakan metode surface plating di atas medium Potato Dextrose Agar, dan seleksi kemampuan degradasi pewarna berdasarkan atas toleransi terhadap konsentrasi zat pewarna, serta besar dan kecepatan dekolorisasi beberapa jenis zat pewarna. Sebagai parameter awal digunakan enam zat pewarna tekstil. Isolat-isolat unggul kemudian diidentifikasi awal berdasar atas morfologi mikroskopis terhadap miseliumnya. Dalam penelitian ini juga digunakan beberapa kultur murni jamur pembusuk putih sebagai pembanding. Dalam penelitian ini digunakan limbah cair dan padat beberapa industri tekstil dan industri pulp & paper, tanah gambut dari Kalimantan Tengah dan Riau, tanah sekitar Tempat Pembuangan Sampah Akhir, serta tanah seresah hutan. Dari berbagai sumber tersebut diperoleh 101 isolat jamur. Uji dekolorisasi kualitatif terhadap 6 zat pewarna menghasilkan 6 isolat unggul yang mampu mendekolorisasi lebih dari tiga jenis pewarna dengan kecepatan relatif tinggi. Masing-masing isolat unggul memiliki spesifikasi dalam daya dekolorisasi terhadap ke 6 jenis pewarna. Identifikasi awal terhadap isolat unggul menunjukkan bahwa mereka berasal dari genus Aspergillus, Cladosporium, Penicillium dan Stachybotrys. Sedangkan uji terhadap kultur jamur pembusuk putih sebagai pembanding menghasilkan 2 kultur unggul, yaitu: Phanerochaete chrysosporium dan Pleurotus ostreatus. Secara umum kemampuan dekolorisasi isolat-isolat jamur kebanyakan masih di bawah kemampuan kedua kultur murni tersebut, namun beberapa isolat justru memiliki kemampuan lebih tinggi dibandingkan kultur pembanding.ABSTRACTThe aim of this study was to isolate textile dye degrading fungi from many kinds of sample. Isolation was done using surface plating method on Potato Dextrose Agar medium. Degradation ability was measured based on dye decolorization of agar medium. The selection of isolates was based on ability to decolorize some types of dye, rate of decolorization, and tolerance to dye concentration, respectively. Six kinds dye, namely Basic fuchsin, Crystal violet, Direct blue, Methylene blue, Rhodamine B, and Safranine were used in this study. Six species of lignin degrading white rot fungi were used as positive controls. More than 100 fungal strains could be isolated from waste water and solid wastes of textile and pulp & paper industries, peat soils from Central Kalimantan and Riau, and forest soil. Examination on dye decolorization resulted in 6 selected isolates (coded as JKNT-1, JKSC-1, KRMS 5, TPA-4, TPA-10, and JYGC-1; and 2 species of lignin degrading white rot fungi, namely Phanerochaete chrysosporium and Pleurotus ostreatus. Decolorization of dye was depended on the fungal species and type of dye, i.e. one species decolorized some dyes but not the others. Methylene Blue was decolorized more readily than other dyes. In general, dye decolorization activity of fungal isolates was lower than the lignin degrading fungi. Microscopic examination indicated that the isolates of JKNT 1 and KRMS-5 were come from the genus Penicillium, the genus of JKSC-1 was Stachybotrys, the TPA-4 and JYGC-1 were Cladosporium, and TPA-10 isolate was included in genus of Aspergillus.

Co-Authors Ady Mara, Ady Afreni Hamidah Agung Bimantara Alfarado, Daniel Ali Djamhuri Andika Puspita Dewi Asiandu, Angga Puja Christina Vivid Handayani Daniel Alfarado Desnelli Desnelli Desnelli Desnelli Eca Desriana Zahwa Eka Amelia Elfita Elfita Endro Setyo Cahyono, Endro Setyo Erni Martani Erni Martani Erni Martani Evi Yuliza Evi Yuliza, Evi Fatma Ferlinahayati Ferlinahayati Fitri Maya Puspita Fitri Maya Puspita Fitrya Fitrya Harmida Harmida Harmida Harmida Harry Widjajanti Hary Widjajanti Hary Widjajanti Hary Widjajanti Hary Widjajanti Heni Yohandini Heni Yohandini Indrawati Indrawati Jurnal Pepadu Laila Hanum LANGKAH SEMBIRING Langkah Sembiring M.Ridha Mauludi Mardiyanto Mardiyanto Maulida Harwati Mega Tiara Muhammad Said MUHAMMAD SAID Muharni Muharni Muharni Muharni Muharni Muharni Mustafa Kamal Niko Erlangga Nina Tanzerina Nita Aminasih Nurkayah, Nurkayah Poedji Loekitowati Hariani Putra Bahtera Jaya Bangun Putri, Hanindita Alifia Rizkiani, Delisa Robinson Sitepu Rosmania, Rosmania Salni Salni Sarno Sarno Sarto Sarto Sarto Sebastian Margino Sebastian Margino Sebastian Margino Sisca Octarina Siti Alharzsa Suheyanto Suheryanto Sutandar, Vivi Hendra Umi Kalsum Widjajanti, Haryati Ahda

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