Garuda - Garba Rujukan Digital

p-Index From 2021 - 2026

5.699

P-Index

This Author published in this journals

All Journal VALENSI JURNAL KIMIA SAINS DAN APLIKASI Teknotan: Jurnal Industri Teknologi Pertanian Jurnal Natur Indonesia Jurnal Sains Materi Indonesia Jurnal Penelitian Hasil Hutan Dharmakarya : Jurnal Aplikasi Ipteks Untuk Masyarakat The Journal of Pure and Applied Chemistry Research Journal of Mathematical and Fundamental Sciences Jurnal Keramik dan Gelas Indonesia Indonesian Journal of Science and Technology Al-Kimia Chimica et Natura Acta ALCHEMY Jurnal Penelitian Kimia Indonesian Mining Journal Indonesian Journal of Chemistry Jurnal Kartika Kimia Jambura Journal of Chemistry Molekul: Jurnal Ilmiah Kimia JKPK (Jurnal Kimia dan Pendidikan Kimia) Indonesian Physical Review Jurnal Penyuluhan Perikanan dan Kelautan Al-Khidmat : Jurnal Ilmiah Pengabdian Kepada Masyarakat Jurnal Penelitian Hasil Hutan Jurnal Keramik dan Gelas Indonesia Asean Journal of Science and Engineering (AJSE) Jurnal Ilmiah Berkala Sains dan Terapan Kimia Makara Journal of Science Gunung Djati Conference Series Jurnal Kimia dan Rekayasa Jurnal Material dan Energi Indonesia Jurnal Teknologi Lingkungan Bulletin of Chemical Reaction Engineering & Catalysis Indonesian Mining Journal al Kimiya : Jurnal Ilmu Kimia dan Terapan ETHOS: Jurnal Penelitian dan Pengabdian kepada Masyarakat Jurnal Penelitian Hasil Hutan

Atiek Rostika Noviyanti

Departemen Kimia, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Padjadjaran

Author-ID : 444503

Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

Published : 75 Documents Claim Missing Document

Claim Missing Document

Articles

3 4 5 6 7

ELEKTROLIT APATIT LANTANUN SILIKAT BERBAHAN DASAR SILIKA SEKAM PADI ATIEK ROSTIKA NOVIYANTI; YATI B YULIYATI; DIANA RAKHMAWATY; S SOLIHUDIN; ROEKMIATI TJOKRONEGORO
Jurnal Material dan Energi Indonesia Vol 6, No 02 (2016)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Silika komersil merupakan salah satu bahan yang digunakan untuk preparasi elektrolit padatan apatit lantanum silikat selama ini. Sekam padi mengandung silika (SiO2) dengan jumlah yang tinggi yaitu 87-98%. Penelitian ini bertujuan menyintesis apatit lantanum silikat dengan sumber silikon dari silika sekam padi. Untuk mengetahui pengaruh penggunaan silikon dari sumber yang berbeda struktur dan morfologi kedua lantanum silikat apatit dikarakterisasi dengan XRD dan SEM. Morfologi apatit lantanum silikat menggunakan silikat komersial nampak lebih kompak dengan densitas lebih tinggi. Struktur dihaluskan dengan menggunakan metode Le bail dari rietica kedua elektrolit apatit memiliki struktur dengan grup ruang P 63/m.

A Compatibility in the Single Cell of the NiO/LSGM/LSCF Atiek Rostika Noviyanti; Claudia Agesti; Yusi Deawati; Dani Gustaman Syarif
Jurnal Kimia Sains dan Aplikasi Vol 23, No 10 (2020): Volume 23 Issue 10 Year 2020
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

The compatibility between anode, electrolyte, and cathode in a solid fuel cell determines its performance. Research on the compatibility between fuel cell components is challenging, especially for SOFCs that operate at high temperatures. Therefore, efforts to reduce the operating temperature to become intermediate temperature SOFC (IT-SOFC) are essential to facilitate compatibility between its components. La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) has been recognized as one of the most promising cathode materials for (IT-SOFC) due to its high electronic conductivity and excellent electrical performance. While La0.8Sr0.2Ga0.8Mg0.2O3–δ (LSGM) has a high oxygen ion conductivity at low temperatures, its chemical stability is still not good. LSGM is known to have interface reactivity with other components such as NiO and LSCF in fuel cells. This study looked at the compatibility of NiO/LSGM/LSCF cells prepared by the solid chemical synthesis method. Compatibility evaluation is determined by the Thermal Expansion Coefficient (TEC) parameter using the dilatometric method, Area Specific Resistance (ASR), and TBF area morphology by Scanning Electron Microscope-Energy Dispersive Spectroscopy (SEM-EDS). While the conductivity of the cells is determined by Electrochemical Impedance Spectroscopy (EIS). NiO/LSGM/LSCF cells have good compatibility with a value of 78.05 kg-1.K.A.s3.µ2 at a temperature of 600°C. The ASR values of cells tend to decrease with increasing temperature and conductivity values at small TEC values. Based on these parameter values, delamination in NiO/LSGM/LSCF cells did not occur.

Konduktivitas Apatit Lantanum Silikat La9.33Si6O26 Hasil Sintesis Hidrotermal dengan Mineraliser NaOH dan KOH Atiek Rostika Noviyanti; Dani Gustaman Syarif; Riansyah Amynurdin; Iwan Hastiawan; Iman Rahayu; Yati B. Yuliyati
ALCHEMY Jurnal Penelitian Kimia Vol 14, No 1 (2018): March
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.14.1.8468.1-15

Apatit lantanum silikat banyak digunakan sebagai elektrolit pada sel bahan bakar padatan (SOFC). Beberapa oksida apatit lantanum silikat La9.33Si6O26 telah disintesis dengan metode hidrotermal guna mengamati pentingnya peranan mineraliser terhadap karakternya. Penelitian ini bertujuan untuk mengetahui pengaruh jenis dan konsentrasi mineraliser terhadap kristalinitas, ukuran partikel dan hubungannya dengan sifat konduktivitas oksida apatit lantanum silikat. Struktur, ukuran partikel dan konduktivitas oksida apatit masing-masing dikarakterisasi dengan XRD, PSA dan spektroskopi impedansi. Oksida apatit lantanum silikat diperoleh dengan melarutkan La2O3 dan Na2SiO3 dengan mol ratio 1,555 menggunakan mineraliser NaOH (3-5 M) dan KOH (0,3-0,7 M). Hasil penelitian menunjukkan bahwa kinerja elektrolit sangat ditentukan oleh kristalinitas dan morfologi apatit lanthanum silikat yang dipengaruhi oleh jenis dan konsentrasi mineralizer. Ukuran apatit lantanum silikat terkecil diperoleh dari hasil sintesis dengan menggunakan mineraliser NaOH 3 M yaitu 1,7889 µm, dengan nilai konduktivitas tertinggi yaitu 1,99×10-6 S/cm pada suhu operasi 600 ºC. Berdasarkan hasil tersebut NaOH 3 M merupakan mineraliser yang paling baik untuk menghasilkan apatit lanthanum silikat La9.33Si6O26.Conductivity of Lanthanum Silicate Apatite Phase of La9.33Si6O26 Prepared by Hydrothermal Synthesis using NaOH and KOH as Mineralizer. Lanthanum silicates are used as electrolytes in solid oxide fuel cells (SOFC). Some oxide-based apatite has been synthesized by hydrothermal method to observe mineralizer effect on the process of crystallization. The effect of type and amount of mineralizers for preparing apatite –type lanthanum silicate of La9.33Si6O26 was investigatedon its crystallinity, particle size, as well as on the conductivity properties relationship were investigated. The structure, particle size and conductivity of La9.33Si6O26 was characterized using X-ray diffraction, particle size analyzer and impedance spectroscopy respectively. The results show that the electrolyte performance is strongly dependent on the crystallinity and the morphology textural of lanthanum silicate apatite affected by the type and amount of mineralizer. The lanthanum silicate apatiteprepared by La2O3 and Na2SiO3 (molar ratio of La2O3 and Na2SiO3 = 1.555), and NaOH (3; 4; 5 M) and KOH (0,3-0,7 M) as mineralizer. As a result, apatite-type lanthanum silicate was prepare using NaOH 3 M shows smallest particle (1.7889 μm) and highest conductivity (1.99 × 10-6 S / cm at 600 ºC). With respect to both particle size and conductivity, the NaOH 3 M can be selected as a suitable type and amount mineralizer for the preparation of excellent lanthanum silicate apatite La9.33Si6O26.

New Chemicals and Routes for the Preparation of Gelatin/HA Composites using the Wet Precipitation Method Nur Akbar; Asril Pramutadi Andi Mustari; Atiek Rostika Noviyanti
Jurnal Kimia Sains dan Aplikasi Vol 23, No 2 (2020): Volume 23 Issue 2 Year 2020
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Hydroxyapatite (HA) is a material that has many uses in a wide variety of applications such as bone repair, bone implants, and bone drug delivery systems. However, the main weakness of this material is its mechanical strength, which HA is not enough to be directly applied. Gelatin addition is used to improve the mechanical properties that can support material properties for the load-bearing application. This research aimed to obtain gelatin/HA composites with high mechanical strength. This goal is achieved by finding the optimum composite composition (addition of 20, 30, and 40% w/w gelatin), CaO precursors from chicken eggshells, and gradual composite preparation. The preparation of gelatin/HA composites was carried out using the wet precipitation method. The chemical bonding, the compressive strength of HA and gelatin/HA composites, and also morphologies were analyzed by Fourier Transform Infra-Red (FTIR), Universal Testing Machine, and Scanning Electron Microscopy (SEM) respectively. The FTIR spectra show there are chemical bonds between amide and carboxyl in gelatin and Ca2+ in HA. The best compressive strength obtained at the composition of 20% gelatin/HA composite is 99.3 MPa (meanwhile HA is 81.5 MPa). The addition of gelatin to HA increases the particle density; this contributes to the increase in mechanical strength.

Effect of Sodium Periodate on the Adsorption Capacity of Silica-Lignin from Rice Husk on Chromium(VI) Yati B. Yuliyati; Solihudin Solihudin; Atiek Rostika Noviyanti
Jurnal Kimia Sains dan Aplikasi Vol 22, No 6 (2019): Volume 22 Issue 6 Year 2019
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Reactive groups such as silanol, hydroxyl, and carbonyl groups in silica-lignin composites play a role in binding to chromium(VI) ions. The activation of functional groups in silica-lignin can be increased by the addition of an activator such as sodium periodate, which can also oxidize the lignin monomer (guaiasil) to ortho-quinone. This study aimed to obtain silica-lignin composites from rice husks activated by sodium periodate with a high surface area. Composite absorption was tested on chromium(VI) adsorption. Silica-lignin isolation was carried out by using the sol-gel method at concentrations of sodium hydroxide 5, 10, 15, and 20% (b/b). Silica-lignin activated with sodium periodate 10% (b/b) had the smallest particle size of about 8μm, with a surface area of 14.0888 m2.g-1 and followed Halsey isotherm adsorption model, with an adsorption capacity of 0.3054 mg.g-1.

Lowered Sintering Temperature on Synthesis of La9.33Si6O26 (LSO) – La0.8Sr0.2Ga0.8Mg0.2O2.55 (LSGM) Electrolyte Composite and the Electrical Performance on La0.7Ca0.3MnO3 (LCM) Cathode Yoga Trianzar Malik; Atiek Rostika Noviyanti; Dani Gustaman Syarif
Jurnal Kimia Sains dan Aplikasi Vol 21, No 4 (2018): volume 21 Issue 4 Year 2018
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Solid oxide fuel cell (SOFC) is the device that can convert chemical energy into electricity with highest efficiency among other fuel cell. La9.33Si6O26 (LSO) is the potential electrolyte at intermediate operation temperature SOFC. Low ionic conductivity of lanthanum silicate-based electrolyte will lead into bad electrical performance on lanthanum manganite-based anode. In this study, LSO was combine with La0.8Sr0.2Ga0.8Mg0.2O2.55 (LSGM) electrolyte by using conventional solid state reaction to enhance the electrical performance of LSO on LCM cathode. However, pre-requisite high sintering temperature on preparation of LSO-LSGM composite will lead into phase transition phase of LSGM that may affect in decreasing the electrical performance. This study resulted that lowered sintering temperature from its ideal temperature still give an improved electrical performance of LCM/LSO-LSGM/LCM symmetrical cell. The ASR value is 0.14 Ω.cm2 which much lower than its analogous symmetrical cell, LSM/LSO/LSM that was reported before.

Sintesis, Karakterisasi, dan Uji Adsorpsi Komposit Silika/Karbon dari Limbah Sekam Padi sebagai Adsorben Tembaga (II): Synthesis, Characterization, and Adsorption Test of Silica/Carbon Composites from Rice Husk Waste as Copper (II) Adsorbent Haryono; Atiek Rostika Noviyanti; Engela Evy Ernawati
Jurnal Teknologi Lingkungan Vol. 24 No. 1 (2023)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jtl.2023.241

Copper ion as one of the pollutants in industrial wastewater can be treated by the adsorption method. One type of adsorbent can be prepared from rice husk. Rice husk as agricultural waste contains carbon and silica which can act as metal adsorbents. The purpose of this study was to synthesize and characterize silica/carbon composites, as well as test their adsorption as adsorbent on copper (II) ion adsorption by determining the optimum composition of silica/carbon, adsorption capacity, and model of isotherm adsorption. The research method consisted of gasification of rice husks, extraction of silica from rice husk charcoal with potassium carbonate as solvent, manufacture of silica/carbon composites, and adsorption tests. The results showed that the mass ratio of silica to carbon of 2:1 was the optimum composition in the synthesis of silica/carbon composites as adsorbent for the adsorption of copper (II) ion. The silica/carbon composite adsorbent in this composition had the highest adsorption capacity for copper (II) ion and surface area is 75.88 mg/g and 233.45 m2/g, respectively. The optimum adsorption time was obtained for 40 minutes and the model of adsorption isotherm in the form of Freundlich adsorption with R2 = 0.9582. Abstrak Ion tembaga sebagai salah satu polutan dalam air limbah industri dapat ditangani dengan metode adsorpsi. Salah satu jenis adsorben dapat disiapkan dari sekam padi. Sekam padi sebagai limbah pertanian mengandung karbon dan silika yang dapat berperan sebagai adsorben logam. Tujuan dari penelitian ini adalah melakukan sintesis dan karakterisasi komposit silika/karbon, serta uji adsorpsinya sebagai adsorben pada adsorpsi ion tembaga (II) melalui penentuan komposisi optimum dari silika/karbon, kapasitas adsorpsi, dan model adsorpsi isoterm. Metode penelitian terdiri dari gasifikasi sekam padi, ekstraksi silika dari arang sekam padi dengan pelarut kalium karbonat, pembuatan komposit silika/karbon, dan uji adsorpsi. Hasil penelitian menunjukkan bahwa rasio massa silika terhadap karbon sebesar 2:1 merupakan komposisi optimum pada sintesis komposit silika/karbon sebagai adsorben untuk adsorpsi ion tembaga (II). Adsorben komposit silika/karbon pada komposisi tersebut memiliki kapasitas adsorpsi terhadap ion tembaga (II) dan luas permukaan paling tinggi yaitu berturut-turut sebesar 75,88 mg/g dan 233,45 m2/g. Waktu optimum adsorpsi diperoleh selama 40 menit dan dengan model adsorpsi isoterm berupa adsorpsi Freundlich dengan nilai R2 = 0,9582.

How to Make and Characterize Hydroxyapatite from Eggshell Using the Hydrothermal Method: Potential Insights for Drug Delivery System Ferli Septi Irwansyah; Alfi Ikhlasul Amal; Eko Prabowo Hadisantoso; Atiek Rostika Noviyanti; Diana Rakhmawaty Eddy; Risdiana Risdiana; Suryana Suryana; Shariffuddin Bin Md Zain
Indonesian Journal of Science and Technology Vol 8, No 3 (2023): (ONLINE FIRST) IJOST: December 2023
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijost.v8i3.60825

Hydroxyapatite (HA) has garnered significant attention as a versatile biomaterial with promising applications in drug delivery systems. This study aimed to synthesize and characterize HA derived from eggshells using the hydrothermal method and explore its potential insights for drug delivery systems. We delivered a step-by-step process to produce HA using a hydrothermal method, supported by several analyses, X-Ray Diffraction (XRD) to analyze the crystallinity structure, Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), Particle Size Analyzer (PSA), and Brunauer-Emmett-Teller (BET). The stage is continued with a study on the potential of HA as a drug delivery system with UV-Visible spectrophotometer instrumentation. The results suggest that the characterized HA suits drug delivery systems due to its favorable properties. This study contributes to the understanding of utilizing hydroxyapatite from eggshells as a viable material for drug delivery systems, opening avenues for further research and development in this field.

Degradation of Ciprofloxacin by Titanium Dioxide (TiO2) Nanoparticles: Optimization of Conditions, Toxicity, and Degradation Pathway Mohammad Rofik Usman; Azmi Prasasti; Sovia Islamiah; Alfian Nur Firdaus; Ayu Wanda Marita; Syamsiyatul Fajriyah; Atiek Rostika Noviyanti; Diana Rakhmawaty Eddy
Bulletin of Chemical Reaction Engineering & Catalysis 2021: BCREC Volume 16 Issue 4 Year 2021 (December 2021)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.16.4.11355.752-762

The popular use of ciprofloxacin is often irrational, so it causes environmental pollution such as resistance. The solution to overcome environmental pollution due to ciprofloxacin is degradation by using TiO2 nanoparticles. TiO2 nanoparticles performance is influenced by environment such as light source, pH solvent, duration of lighting and TiO2 nanoparticles mass. The residual levels determination of ciprofloxacin was carried out by using a UV-Vis spectrophotometer. Toxicity test of ciprofloxacin degradation products with TiO2 nanoparticles used Escherichia coli bacteria. Liquid Chromatography Mass Spectrometry (LCMS) was used to determine the type of ciprofloxacin degradation product with TiO2 nanoparticles. The optimum condition for the ciprofloxacin degradation with TiO2 nanoparticles is lighting for 5 hours by using a white mercury UV lamp and 50 mg TiO2 nanoparticles with pH solvent of 5.5. The toxicity of ciprofloxacin degradation product with TiO2 nanoparticles was low. The smallest degradation product identified with m/z was p-fluoraniline (m/z 111). Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

Efisiensi Inhibisi Korosi oleh Sikloheksilamina pada Baja API 5L Grade B dalam Medium Limbah Cair Minyak Bumi HARYONO; YULIANDRI; ATIEK ROSTIKA NOVIYANTI; E. EVY ERNAWATI
Gunung Djati Conference Series Vol. 34 (2023): Prosiding Seminar Nasional Kimia Tahun 2023
Publisher : UIN Sunan Gunung Djati Bandung

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

Sistem perpipaan dengan bahan dasar dari besi, salah satunya di industri pengolahan minyak bumi, relatif rentan terhadap permasalah korosi. Korosi pada logam dapat terjadi dengan laju bervariasi tergantung pada berbagai faktor, seperti komposisi kimia medium, suhu, dan waktu kontak antara logam dengan medium. Laju korosi dapat hambat dengan teknik penambahan inhibitor ke dalam medium. Inhibitor korosi dari senyawa organik lebih banyak dipilih daripada anorganik. Salah satu inhibitor korosi yang potensial adalah sikloheksilamina. Kemampuan sikloheksilamina sebagai inhibor korosi dipengaruhi oleh konsentrasinya dalam medium, suhu medium, lama pemakaian, dan kondisi dinamik medium. Penelitian ini bertujuan menentukan efisiensi inhibisi korosi oleh inhibitor sikloheksilamina pada pipa baja API 5L Grade B di dalam medium limbah cair minyak bumi. Efisiensi inhibisi korosi tersebut dipelajari pada variasi suhu medium 30, 45, 60, 75, dan 90°C, sedangkan waktu kontak divariasikan selama 1, 2, 3, dan 4 hari. Pengujian inhibisi korosi dilakukan dengan penambahan inhibitor korosi sikloheksiamina sebanyak 0,25% (v/v). Morfologi permukaan, komposisi unsur, dan komposisi senyawa dari sampel pipa baja sebelum dan setelah pengujian inhibisi korosi dikarakterisasi dengan SEM-EDS dan XRD. Hasil penelitian menunjukkan bahwa semakin tinggi suhu medium dan semakin lama waktu kontak, efisiensi inhibitor korosi sikloheksilamina cenderung mengalami penurunan. Efisiensi inhibisi korosi tertinggi oleh sikloheksilamina pada posisi BLC (bottom line corrosion) dicapai sebesar 60,1% ketika pengujian dilakukan pada suhu medium 60°C selama 1 hari. Sedangkan pengujian korosi pada posisi TLC (top line corrosion) memberikan efisiensi inhibisi korosi tertinggi sebesar 91,9% ketika dilakukan pada suhu medium 45°C dan lama kontak 1 hari.

Co-Authors Adhitya Pratama Adzkia, Qurratu Aini Alya Akrajas Ali Umar Akrajas Ali Umar Akrajas Ali Umar Alfi Ikhlasul Amal Alfi Ikhlasul Amal Alfian Nur Firdaus Alfian Raymondo Sinurat Allyn Pramudya Sulaeman Amal, Alfi Ikhlasul Anceu Murniati Anni Anggraeni Anni Anggraeni, Anni Arie Hardian Arini Nurisydayanti Gumilar Asman Asman Asril Pramutadi Andi Mustari Ayu Wanda Marita Azhari Yusuf Azhari Yusuf Azman Bin Ma'Amor Azmi Prasasti Bambang Prijamboedi Basril Simbarta Tarigan Budi Adiperdana Budiman, Yudha Prawira Cecep Kusmana Chicilia, Novia Claudia Agesti Dani Gustaman Syarif Dani Gustaman Syarif Dani Gustaman Syarif Dayu Kusuma, Hersandy Diana Rakhmawaty Diana Rakhmawaty Diana Rakhmawaty Eddy Dickry Abil Barry Pratama Diding Mandala Putra Dini Fitriani Dini Janati Diyanthi, Erlinda Widyasmara E Evy Ernawati E. Evy Ernawati Eddy, Diana Rakhmawati Efri Mardawati Eko Prabowo Hadisantoso, Eko Prabowo Eleonora Agustine Engela Evy Ernawati Engela Evy Ernawati Fajar Firmansyah Ferli Septi Irwansyah Firmansyah, Fajar Gani Abdilah Gerald Tamuntuan Ghaissani Nur Maulani Gustaman Syarif, Dani Halim, Riyan Hanapratiwi, Reinanda HARYONO Haryono Haryono Haryono Haryono Hemzah, Sabila Aulia Hendri Setiawan Hersandy Dayu Kusuma Hutabarat, Geofanny S I Nyoman Marsih Iman Rahayu Irwan Kurnia Irwan Kurnia Ismunandar Ismu Iwan Hastiawan Iwan Hastiawan Iwan Hastiawan Iwan Hastiawan Jasmansyah, Jasmansyah Juliandri Juliandri Juliandri Kartika Hajar Kirana Karya, Teguh Kurnia, Irwan Laelaturrohmah Laelaturrohmah Lestari, Putri Rizka Lubis, Rubianto A. Ma'Amor, Azman Bin Malik, Yoga Trianzar Maqsudi, Shobir Muntahal Maryani, Eneng Mastuti Widi Lestari Mastuti Widi Lestari, Mastuti Widi Ma’amor, Azman Meliani, Tiara Ayu Mochammad Rizal Mochammad Rizal Mohammad Rofik Usman Muhamad Rozaq Nur Fauzi Muhammad Raihan Gemilang Muhammad Reza Muhammad Rizky Ridwansyah Muhammad, Irfan Handi Mukhamad Nurhadi Mukhamad Nurhadi, Mukhamad Nafisah, Aulia Zakiyatun Nisrina, Aniqa Novella, Indrika Nur Akbar Nur Akbar, Nur Nur Azizah Ferdiana Nurhayati, Mita Pandu, Rinal Qodir, Dzikri T Rahmadona, Nova Ratna Kusumawardani, Ratna Reinanda Hanapratiwi Riansyah Amynurdin Rihan Amila Putri Rinal Pandu Risdiana Risdiana RISDIANA RISDIANA, RISDIANA Rizka Endah Roekmiati Tjokronegoro Roekmiati Tjokronegoro, Roekmiati Rofifah, Sinthia Anis Rubianto A. Lubis Rukiah Rukiah Rukiah Rukiah Rukiah Rukiah Rukiah Rukiah Rukiah Rukiah Rustaman Rustaman S SOLIHUDIN S Solihudin, S S. Suryana Sahrul Hidayat Sarifah Nurjanah Seli Listiani Shariffuddin Bin Md Zain Solihudin Solihudin Solihudin, Solihudin Solihudin, Solihudin Sovia Islamiah Staustan, Nafisah Suryana Suryana Syamsiyatul Fajriyah TATI NURHAYATI Titin Siti Fatimah Titin Siti Fatimah Wahyu Safriansyah Walim Lili Yashfi, Difa Muhammad Yati B Yuliyati YATI B YULIYATI Yati B Yuliyati Yati B Yuliyati Yati B Yuliyati, Yati B Yati B. Yuliyati Yati B. Yuliyati Yati B. Yuliyati Yati B. Yuliyati Yeni Wahyuni Hartati Yoga Trianzar Malik Yuli Andriani YULIANDRI Yusi Deawati Yusi Deawati

Title

Found 75 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 75 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 75 Documents
Search