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All Journal Jurnal Teknik Mesin Rotasi Jurnal Pendidikan Teknologi dan Kejuruan Jurnal Sains Materi Indonesia Urania Jurnal Ilmiah Daur Bahan Bakar Nuklir Teknika: Jurnal Sains dan Teknologi Setrum : Sistem Kendali-Tenaga-elektronika-telekomunikasi-komputer ROTOR: JURNAL ILMIAH TEKNIK MESIN Jurnal Kimia dan Kemasan PROSIDING SEMINAR NASIONAL CENDEKIAWAN Indonesian Journal of Chemistry Metalurgi Indonesian Physical Review Jurnal Metalurgi dan Material Indonesia ADI Journal on Recent Innovation (AJRI) Teknomekanik JURNAL FLYWHEEL Makara Journal of Science Journal of Fibers and Polymer Composites Metalurgi

Anne Zulfia

1Departemen Metalurgi Dan Material, Fakultas Teknik Universitas Indonesia, Jakarta

Author-ID : 229495

Religion Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics

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THE EFFECT OF LI2O ONCOMPOSITE LTAP AND WINDOWS GLASSES Bambang Prihandoko; Priyo Sardjono; Anne Zulfia; Eddy Siradj
Jurnal Sains Materi Indonesia Vol 9, No 1: OKTOBER 2007
Publisher : Center for Science & Technology of Advanced Materials - National Nuclear Energy Agency

THE EFFECT OF LI2O ONCOMPOSITE LTAP AND WINDOWS GLASSES. Research on The Effect of Li2O on Composite LTAP and Windows Glasses have been done. Windows glasses contain of SodiumLime Silica Glasses and Na2O 11,6%, CaO 8,1%and SiO2 58,7%. LTAP ( Lithium Titanium Alumunium Phosphate ) material mixed in the slurry of powder windows glasses with composition of weight procentage 75%. The temperatures process for sintering of samples is above of glass transition at 600 oC. Then samples quenched with liquid nitrogen. The variation of Li2O addition on samples are 0, 2,5, 5 and 7,5% weight. XRD pattern of all samples has a same phenomenon of crystallization phases, i.e. LTAP with lithium silica from Li5Si2O7, Li2SiO3, Li4SiO4 and Li2Si2O5. Optimum addition oh Li2O is 7,5% weight Li2O that gift a conductivity of 1,479 x 10-7 S/cm and high value on density and smallest porosity

SINTESIS LITHIUM TITANAT DENGAN METODE HIDROTERMAL DAN EFEK SUHU SINTERING PADA KARAKTERISTIK NANO STRUKTURNYA Bambang Priyono; Juliadi Juliadi; Anne Zulfia Syahrial; Evvy Kartini
Jurnal Sains Materi Indonesia Vol 17, No 1: OKTOBER 2015
Publisher : Center for Science & Technology of Advanced Materials - National Nuclear Energy Agency

SINTESIS LITHIUM TITANAT DENGAN METODE HIDROTERMAL DAN EFEK SUHU SINTERING PADA KARAKTERISTIK NANO STRUKTURNYA. Lithium titanat merupakan salah satu senyawa yang digunakan sebagai material anoda pada baterai lithium ion. Senyawa ini disintesis dengan mencampurkan TiO2 anatase dan lithium karbonat (Li2CO3) dan diproses menggunakan metode hidrotermal pada suhu 120 oC selama 15 jam, selanjutnya disinter pada tiga variasi suhu sintering yaitu 550 oC, 650 oC dan 750 oC untuk menghasilkan LTO fasa spinel kristalin. TiO2 anatase yang dipakai dibuat dengan metode sol-gel dengan suhu kalsinasi 300 oC selama 2 jam. Senyawa yang dihasilkan diamati dengan menggunakan X-Ray Diffraction (XRD), Brunauer Emmet Teller (BET), Spektroskopi Infra Merah (FT-IR) dan Field Emission Scanning Electron Microscope (FE-SEM). Hasil foto mikrograf FE-SEM memperlihatkan padatan senyawa lithium titanat (Li4Ti5O12), Li2TiO3, dan sisa TiO2 rutile dengan struktur morfologi tidak beraturan sebagai aglomerat. Hasil XRD dan BET menunjukkan bahwa pada suhu sintering 550 oC dihasilkan ukuran kristalit ratarata 23,45 nm, luas permukaan 6,65 m2/g, dan didominasi oleh TiO2 rutile, sementara suhu sintering 650 oC dihasilkan ukuran kristalit rata-rata 27,70 nm, luas permukaan 1,91m2/g, dan masih didominasi oleh TiO2 rutile dan pada suhu 750 oC dihasilkan ukuran kristalit rata-rata 52,06 nm, luas permukaan sangat kecil, dan didominasi oleh litihum titanat (Li4Ti5O12). Hasil FT-IR mengkonfirmasikan keberadaan LTO spinel pada padatan hasil sintering. Ukuran kristalit yang diperoleh dalam kisaran di bawah 100 nm, sesuai dengan tujuan penelitian ini.

SYNTHESIS AND ELECTROCHEMICAL CHARACTERIZATION OF Li3PO4 FORSOLID STATE ELECTROLYTES Heri Jodi; Supardi Supardi; Evvy Kartini; Anne Zulfia
Jurnal Sains Materi Indonesia Vol 18, No 1: OKTOBER 2016
Publisher : Center for Science & Technology of Advanced Materials - National Nuclear Energy Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17146/jsmi.2016.18.1.4181

SYNTHESIS AND ELECTROCHEMICAL CHARACTERIZATION OF Li3PO4 FORSOLID STATE ELECTROLYTES. The application of solid state electrolytes to solid state battery becomes important research area, recently, to overcome leakage and combustion issues involved in liquid electrolytes. Solid state electrolytes are safer, easily packaged and have several advantages, including easy fabrication, high ionic conductivity at room temperature and wide compositional range. Here in this study we characterized Li3PO4 for solid state electrolyte, synthesized by solid state reaction and wet chemical reaction methods. The samples were characterized using Electrochemical Impedance Spectrometer (EIS) to determine its electrical properties in addition to X-Ray Diffraction and Scanning Electron Microscope -Energy Dispersive X-Rays Spectroscopy (SEM-EDS) characterizations. Both of samples that have been characterized have a high electrical resistivity on the order of tens MW, with DC conductivity in order of 10-10 to 10-9 S/cm.

THE EFFECT OF ANNEALING AND COLD FORGING ON MICROSTRUCTURE AND HARDNESS PROPERTIES OF Al-SiC COMPOSITE : A PRELIMINARY STUDY Yudhistira Adityawardhana; Anne Zulfia; Bintang Adjiantoro; Muhammad Yunan Hasbi
Urania : Jurnal Ilmiah Daur Bahan Bakar Nuklir Vol 27, No 2 (2021): Juni, 2021
Publisher : website

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17146/urania.2021.27.2.6396

THE EFFECT OF ANNEALING AND COLD FORGING ON MICROSTRUCTURE AND HARDNESS PROPERTIES OF AL-SIC COMPOSITE: A PRELIMINARY STUDY. Aluminium Metal Matrix Composites (AMMCs) are one of the exciting materials that have an extensive function in various applications. By utilizing reinforcement in the fabrication process, Al composites can produce superior properties such as high strength, good fracture resistance, and of course, lightweight. Therefore, many studies are interested in revealing the characteristics of Al composite materials through various methods and variations of reinforcement. This research is a preliminary study with a scope of work, including observing the effects of annealing and cold forging processes on the microstructure morphology and hardness properties of SiC nano-ceramic reinforced Al composites. The aluminium used in this study is a 7xxx series aluminium alloy. The fabrication process was carried out by stir-squeeze casting method. Microstructure analysis was conducted by optical microscopy and Scanning Electron Microscopy (SEM) equipped with Emission Dispersion Spectroscopy (EDS). The hardness properties of the Al-SiC composite were examined by micro Vickers hardness testing. This research reported that the annealing process influences the grain refinement and hardness properties of the Al-SiC composite. The sample experienced to cold forging has to improve the hardness value. Increasing hardness by forging after anneal may introduce due to the grain compression effect of the dislocation mechanism. Comprehensive research is required to find out other potentials of Al-SiC composite materials. Keywords: Al-SiC composite, annealing temperature, cold forging, hardness, microstructure.

Characteristics of aluminum-based composites reinforced of Al2O3/B4C by accumulative roll bonding (ARB) Agus Pramono; Anne Zulfia; Ali Alhamidi; Alfirano Alfirano; Suryana Suryana; Anistasia Milandia
Jurnal Teknika Vol 17, No 2 (2021): Available Online in November 2021
Publisher : Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/tjst.v17i2.12156

Metalworking technology is currently developing rapidly, especially the processing of metal composite materials. The metalworking process in which ultra-large plastic strains are introduced into the device to create ultra-fine grained metal is a new method for producing high-strength metals. This method is called accumulative roll bonding (ARB). The ideal operating temperature used in the ARB process is the use of dynamic recrystallization temperatures. Roll compression in ARB affects the microstructure and mechanical properties of the composite material, where rolling compression can produce the application of simple forces sequentially evenly on the compressed workpiece. With the addition of Al2O3 and B4C reinforcement in the ARB process, it is expected that the mechanical properties will increase significantly. Composite AA1070 or Al2O3 produces an average hardness: 43.36 BHN, using B4C reinforcement increased 53.50 BHN with AA17075 with Al2O3 reinforcement the hardness was 87.20, with B4C increased significantly by 105.2 BHN. This study compares Al2O3 and B4C as reinforcement on an application in metal matrix composites (MMC). Characteristics compared and comparison of types of AA1070 or AA7075 matrix in their suitability between the use of matrix and reinforcement processed by ARB. Teknologi pengerjaan logam saat ini berkembang pesat, terutama pengolahan bahan-bahan komposit logam. Proses terjadi di mana strain plastik ultra-besar dimasukkan ke dalam perangkat untuk menciptakan logam yang berbutir ultra-halus merupakan metode terbaru untuk menghasilkan logam dengan kekuatan tinggi, metode ini dinamakan dengan accumulative roll bonding (ARB). Temperatur operasional yang ideal yang digunakan pada proses ARB adalah penggunaan temperatur dinamik rekristaslisasi, kompresi roll pada ARB memiliki efek pada struktur mikro dan sifat mekanik dari bahan komposit yang mana kompresi bergulir mampu menghasilkan penerapan gaya-gaya sederhana secara berurutan secara merata pada benda kerja yang mengalami kompresi. Penambahan penguat Al2O3 dan B4C pada proses ARB, terjadi peningkatan secara signifikan. Komposit AA1070/Al2O3 menghasilkan kekerasan rata-rata 43.36 BHN, menggunakan penguat B4C meningkat 53.50 BHN dengan AA7075 berpenguat Al2O3 kekerasan sebesar 87.20, dengan B4C meningkat signifikan sebesar 105.2 BHN. Penelitian ini membandingkan penggunaan Al2O3 dan B4C sebagai penguat dalam penerapanya sebagai penguat dalam kompoisit bermatrik logam. Karakteristik dibandingkan serta pembanding jenis matriks AA1070/AA7075 dalam kesesuaiannya antara penggunaan matriks terhadap penguat yang diproses oleh ARB.

Characteristics of Vanadium Doped And Bamboo Activated Carbon Coated LiFePO4 And Its Performance For Lithium Ion Battery Cathode Nofrijon Sofyan; Subkhan Alfaruq; Anne Zulfia; Achmad Subhan
Jurnal Kimia dan Kemasan Vol. 40 No. 1 April 2018
Publisher : Balai Besar Kimia dan Kemasan

Vanadium doped and bamboo activated carbon coated lithium iron phosphate (LiFePO4) used for lithium ion battery cathode has been successfully prepared. Lithium iron phosphate was prepared through a wet chemical method followed by a hydrothermal process from the starting materials of LiOH, NH4H2PO4, and FeSO4.7H2O. The dopant variations of 0 wt.%, 3 wt.%, 5 wt.%, and 7 wt.% of vanadium and a fixed 3 wt.% of bamboo activated carbon were carried out via a solid-state reaction process each by using NH4VO3 as a source of vanadium and carbon pyrolyzed from bamboo tree, respectively. The characterization was carried out using X-ray Diffraction (XRD) for the phase formed and its crystal structure, Scanning Electron Microscope (SEM) for the surface morphology, Electrochemical Impedance Spectroscopy (EIS) for the conductivity, and battery analyzer for the performance of lithium ion battery cathode. The XRD results show that the phase formed has an olivine based structure with an orthorhombic space group. Morphology examination revealed that the particle agglomeration decreased with the increasing level of vanadium concentrations. Conductivity test showed that the impedance of solid electrolyte interface decreased with the increase of vanadium concentration indicated by increasing conductivity of 1.25 x 10-5 S/cm, 2.02 x 10-5 S/cm, 4.37 x 10-5 S/cm, and 5.69 x 10-5 S/cm, each for 0 wt.%, 3 wt.%, 5 wt.%, and 7 wt.% vanadium, respectively. Vanadium doping and bamboo activated carbon coating are promising candidate for improving lithium ion battery cathode as the initial charge and discharge capacity at 0.5C for LiFePO4/C at 7 wt.% vanadium is in the range of 8.0 mAh/g.

Proses Penuaan (Aging) pada Paduan Aluminium AA 333 Hasil Proses Sand Casting Anne Zulfia; Ratna Juwita; Ari Uliana; I Nyoman Jujur; Jarot Raharjo
Jurnal Teknik Mesin (Sinta 3) Vol. 12 No. 1 (2010): APRIL 2010
Publisher : Institute of Research and Community Outreach, Petra Christian University

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

The use of aluminum alloys AA 333 as automotive component is progressively expand with the expanding desire to lose weight from the used component. However, the as-cast product from aluminum alloys AA 333 is still having low mechanical properties, so it needs the other process to increase the hardness value; one of the processes is through heat treatment process. The heat treatment process for this materials is T6 process (artificial aging), including: solution treatment at temperature 525 oC for 8 hour, quenching and various time of aging process. Aging was conducted at 180 oC for 25 minutes, 1 hours, 5 hours, 8 hours and 16 hours respectively. For aging 5 hours, the aging temperature was applied various from 110 oC, 150 oC, 180 oC, 200 oC to 250 oC, so the expected result from this research is to know the influence of the variation to morphological change of microstructure and hardness value of aluminum alloys AA 333. The results had indicated that the aging process at 180 oC caused the increased of the hardness value of each phases: α-Al matrix, primary silicon, eutectic Al-Al2Cu and Al15 (Fe, Mn)3Si2 and also caused the increased of the hardness value of aluminum alloys AA 333, from the condition of as-cast, as-quench, aging process for 25 minutes, 1 hours, 5 hours, 8 hours and 16 hours. And others results had indicated that the aging process for 5 hours also caused increasing of hardness value of each phases. The aging process (at 180 oC) for 8 hours and 5 hours) represented the most optimum time to obtained the best combination from phase distribution, that spread over in the rich matrix of aluminum and the size measured from each phase, therefore giving the highest hardness value. Abstract in Bahasa Indonesia: Penggunaan paduan aluminium AA 333 sebagai komponen otomotif semakin berkembang bersamaan dengan semakin berkembangnya keinginan untuk mengurangi berat dari komponen yang digunakan. Namun paduan aluminium AA 333 as-cast masih memiliki sifat mekanis yang rendah sehingga diperlukan proses lain untuk meningkatkan kekerasannya, salah satunya melalui proses perlakuan panas. Proses perlakuan panas yang dipilih dalam penelitian ini adalah proses perlakuan panas T6 (artificial aging), yang meliputi tahapan: solution treatment pada temperatur 525oC selama 8 jam, quenching dan proses aging. Variabel yang digunakan dalam penelitian ini adalah variasi waktu aging (temperatur 180oC), yaitu 25 menit, 1 jam, 5 jam, 8 jam dan 16 jam dan variasi temperatur aging (waktu aging 5 jam), yaitu 110oC, 150oC, 180oC, 200oC, 250oC. Dari penelitian ini diharapkan dapat diketahui pengaruh dari variasi tersebut terhadap perubahan struktur mikro dan nilai kekerasan paduan aluminium AA 333. Hasil penelitian menunjukkan bahwa aging temperatur 180oC menyebabkan peningkatan kekerasan dari tiap fase: matrik α-Al, silikon primer, eutektik Al-Al2Cu dan Al15(Fe,Mn)3Si2 dan menyebabkan peningkatan kekerasan paduan aluminium AA 333, dari kondisi as-cast, as-quench, dan waktu aging 25 menit, 1 jam, 5 jam, 8 jam dan 16 jam. Hasil penelitian lainnya juga menunjukkan bahwa proses aging selama 5 jam juga menyebabkan peningkatan kekerasan dari tiap fase. Waktu aging (pada temperatur 180oC) selama 8 jam dan temperatur aging (selama 5 jam) pada 180oC merupakan waktu yang paling optimum untuk memperoleh kombinasi yang terbaik dari distribusi fase, yang tersebar merata dalam matrik kaya Al, dan ukuran dari masing-masing fase sehingga menghasilkan nilai kekerasan yang tertinggi. Kata kunci: Aluminium AA333, penuaan buatan (T6), kekerasan, struktur mikro.

STUDI PENGARUH ORIENTASI SERAT KOMPOSIT FRP TERHADAP KEKUATAN LAMBUNG KAPAL MENGGUNAKAN METODE ELEMEN HINGGA Anne Zulfia Syahrial; Nurul Huda
PROSIDING SEMINAR NASIONAL CENDEKIAWAN PROSIDING SEMINAR NASIONAL CENDEKIAWAN 2018 BUKU I
Publisher : Lembaga Penelitian Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/semnas.v0i0.3476

Material FRP menawarkan potensi yang sanggat baik untuk aplikasi di bidang kelautan, dimana ketahanan korosi dan beratnya yang ringan merupakan kelebihan utama dibanding struktur logam. Namun, seringnya terjadi kecelakaan kapal berbahan fiberglass disebabkan oleh desain konstruksi dan proses produksi kapal fiberglass yang umumnya belum mengacu pada persyaratan klasifikasi, khususnya pada kapal-kapal berukuran di bawah 24 meter. Selain itu jenis bahan, komposisi, dan susunan laminasi di masing-masing galangan bervariasi, tanpa adanya pengujian spesimen di laboratorium, sehingga kekuatan konstruksinya sulit dijamin. Pada penelitian kali ini akan dilakukan perhitungan kekuatan struktur kapal menggunakan regulasi ISO 12215-5 yang dilanjutkan dengan kajian variasi arah penyusunan serat komposit FRP pada lambung kapal untuk mendapatkan komposisi susunan laminasi yang optimum dengan menggunakan metode elemen hingga(FEM). Hasil optimasi menunjukkan orientasi arah serat 45 derajat memiliki defleksi paling kecil..

Konduktifitas Listrik Komposit Polimer Polipropilena/Karbon Untuk Aplikasi Pelat Bipolar Fuel Cell Agus Pramono; Anne Zulfia
Setrum : Sistem Kendali-Tenaga-elektronika-telekomunikasi-komputer Vol 1, No 1 (2012): Edisi Juni 2012
Publisher : Fakultas Teknik Elektro - Universitas Sultan Ageng Tirtayasa

Proton exchange membrane fuel cell (PEMFC) merupakan salah satu sumber energi alternatif yang saat ini sedang dikembangkan untuk mengatasi permasahan krisis energi dan lingkungan. Salah satu komponen yang mempunyai peran signifikan dalam efisiensi biaya dan proses PEMFC adalah pelat bipolar. Untuk itu diperlukan pelat bipolar yang ringan, murah, dan mudah diproduksi secara masal. Dalam penelitian ini dikembangkan komposit pelat bipolar menggunakan matriks polipropilena (PP), penguat karbon hitam dan grafit elektroda dengan variasi komposisi wt% PP/grafit/CB sebesar 85:10:5; 75:20:5; 65:30:5;dan 55:40:5, sehingga mendapatkan sifat daya hantar listrik yang baik. Sifat-sifat dari komposit yang dihasilkan diuji dengan pengujian konduktivitas, Dari keempat formula, didapatkan bahwa sifat listrik yang paling baik terdapat pada formula empat dengan penambahan grafit sebesar 40 wt%. Formulasi empat memiliki konduktivitas listrik sebesar 2,523E-03 S/cm. sifat listrik juga belum optimal dikarenakan masih terdapatnya banyak rongga atau pori dalam komposit PP/grafit/CB yang disebabkan oleh udara yang terjebak selama proses penekanan.

PENGARUH WAKTU AGING TERHADAP KEKERASAN DAN STRUKTUR MIKRO KOMPOSIT Al-Si-Mg/Al2O3 DENGAN METODE STIR CASTING Salahuddin Junus; Anne Zulfia; Melisa Melisa; Lilis Mariani
ROTOR Vol 7 No 2 (2014)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (237.589 KB)

Aluminum composite needs proper aging period to achieve its optimum mechanical properties through precipitation hardening process. In this research, alumina (Al2O3) particulate reinforced aluminum alloy 6061 composite which is fabricated by stir casting method, undergoes T6 treatment in 175°C for 2 hours, 4 hours, 6 hours, and 8 hours. Mechanical properties evaluations such as tensile testing, hardness testing, and wear rate testing; also microstructure and SEM observation are conducted. Research shows that the optimum artificial aging period for the aluminum composite is 6 hours in 175°C. Wear rate decreases after T6 treatment applied. Hardness increases after T6 treatment applied with aging period of 4 and 6 hours. Tensile strength decreases compared to as-cast composite due to formation of void at interface when T6 treatment conducted. Manufacturing factors will affect the mechanical properties of composite. Keywords: Aluminum composite, billet Al.6061, T6, aging period, stir casting

Co-Authors Abdul Aziz Ammar Achmad Subhan Achmad Subhan Agus Pramono AGUS PURWANTO Agus Sudjatno Agus Sukarto Agus Sukarto W Ahmad Taufik Akhmad Herman Yuwono Alexey Glushshenkov Alfaruq, Subkhan Alfirano Alfirano Ali Alhamidi Angellinnov, Fiona Anistasia Milandia Apriliani, Enni Ari Uliana Arif Arif Astini, Vita Bambang Prihandoko Bambang Priyono Bambang Priyono Bambang Suharno Bintang Adjiantoro D.N. Haerani Darminto . Darminto . Dedi Supriadi Dwi Marta Nurjaya, Dwi Marta Eddy S Siradj Eddy S. Siradj Efendi Mabruri Effendi Mabruri Ekavianti Prajatelistia Evvy Kartini Evvy Kartini Evvy Kartini Evvy Kartini Evvy Kartini Evvy Kartini Fadli Robby, Fadli G.N. Anastasia Sahari Ghiska Ramahdita Hanuna Haritsah Hasriyanti Hasriyanti Heri Jodi Heri Jodi Heri Jodi, Heri I Komang Astana Widi I Nyoman Jujur Indra Gunawan Ismojo Ismojo Jarot Raharjo johansyah johansyah Johny Wahyuadi Soedarsono Juliadi Juliadi Jumari, Arif Kirman Kirman, Kirman Kirman M. Lestari, Yulinda Lilis Mariani Lilis Mariani, Lilis Luh Putu Ratna Sundari M. Zainuri Mabruri, Effendi Mario Marfelly, Mario Meirawati, Selvia Melisa Melisa Moch Ardi Dimastiar Mochamad Chalid Muhammad Wira Akira Muhammad Yunan Hasbi Myrna Ariati, Myrna Nanik Indayaningsih Nasution, Annio Indah Lestari Nengsih, Sulistia Nofrijon Sofyan, Nofrijon Nurfitrah, Aditya Eka Nurul Huda Oktaviani, Adinda Priyo Sardjono Rahmadiawan, Dieter Ratna Juwita Razak, Muhammad Abdul Rd. Panji Maulana Riva Nanda, Iksan Sahari, G.N. Anastasia Salahuddin Junus Sibut Sotya Astutiningsih Subkhan Alfaruq Sudirman Sudirman Supardi Supardi Taufik Abimanyu Taufik Abimanyu, Taufik Verina Dalam Verina Dalam, Verina Wahid Muhamad Furkon Rahmatulloh, Wahid Muhamad Furkon Wahyudianingsih Wahyudianingsih Wara Dyah Pita Rengga Wayan Sujana Widyastuti . Widyastuti Widyastuti Yudha, Cornelius Satria Yudhistira Adityawardhana Yulinda Lestari Yustinus Purwamargapratala Zainuri, M

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