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All Journal International Journal of Advances in Applied Sciences Jurnal Rekayasa Proses International Journal of Renewable Energy Development SPEKTRUM INDUSTRI CHEMICA Jurnal Teknik Kimia Eksergi: Chemical Engineering Journal Prosiding Semnastek Elkawnie Indonesian Journal of Science and Technology Jurnal SOLMA Indonesian Journal of Chemistry Agroindustrial Technology Journal Sains Natural: Journal of Biology and Chemistry Chemistry Indonesian Journal of Chemical Research Jurnal Rekayasa Proses JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Ilmiah Teknik Kimia Buletin Ilmiah Sarjana Teknik Elektro ASEAN Journal of Chemical Engineering Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Pengabdian Masyarakat Indonesia Muhammadiyah Journal of Nutrition and Food Science (MJNF) Makara Journal of Technology Ezra Science Bulletin Indonesian Journal of Chemical Engineering al Kimiya : Jurnal Ilmu Kimia dan Terapan Jurnal Rekayasa Proses
Siti Jamilatun
Department Of Chemical Engineering, Universitas Ahmad Dahlan, Yogyakarta, Indonesia
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Nursing Physics Public Health Social Sciences Other

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Toward an Advanced Gas Composition Measurement Device for Chemical Reaction Analysis Fajriansya Gonibala; Siti Jamilatun; Shinta Amelia; Alfian Ma’arif; Muhammad Haryo Setiawan
Buletin Ilmiah Sarjana Teknik Elektro Vol. 5 No. 4 (2023): December
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/biste.v5i4.9249

Abstract

The research details the development of a reactor-based monitoring system designed to identify and monitor gases generated within industrial chemical reactors. Consisting of nine MQ and DHT11 sensors, this reactor design allows for simultaneous measurement of temperature and humidity within the sample. Using a sensor array methodology, this research utilizes multiple sensors to collect and process analog signals to improve the accuracy of gas identification within samples. These analog signals obtained from the sensors are processed by an Arduino Mega 2560 microcontroller using the Arduino IDE software. The research, conducted on ten different samples, shows methane (CH4), hydrogen (H2), and alcohol (C2H6O) as the most concentrated gases. Notably, certain samples such as batik waste, honey, Robusta coffee, and sambal have a significant impact on methane gas concentrations. In addition, substances such as Robusta Coffee, Sprite, Syrup, and Oyster Sauce have a significant effect on hydrogen gas concentrations, while Robusta Coffee, Sambal, Arabica Coffee, and Pepper have a significant effect on alcohol gas concentrations. In addition, of the nine MQ sensors used, the MQ3, MQ4, and MQ8 are particularly effective at detecting alcohol, methane, and hydrogen gases, respectively, in the samples tested.
Generation and Characterization of Bio-Oil Obtained From The Slow Pyrolysis of Oil Palm Empty Fruit Bunches at Various Temperatures Siti Jamilatun; Dhias Cahya Hakika; Dwita Sarah; Anggun Puspitasari
Elkawnie: Journal of Islamic Science and Technology Vol 10, No 1 (2024)
Publisher : Universitas Islam Negeri Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v10i1.17844

Abstract

Abstract: In the last decade, biomass pyrolysis has received more attention in the renewable energy sector. This technology converts biomass to obtain valuable products: bio-oil, biochar, and gas. Bio-oil is a liquid product from pyrolysis that can be used to fuel boilers and furnaces, or further processed to produce fuel oil and chemical products. In this study, bio-oil was generated from slow pyrolysis of oil palm empty fruit bunches (OPEFB) at various temperatures. The objective of this research is to investigate the effect of temperature on the properties of products generated from the pyrolysis of OPEFB. Six different pyrolysis temperatures ranging from 300 to 700℃ were used to produce bio-oil. It was found that operating temperature affected the product yield and its properties significantly. The higher the operating temperature of slow pyrolysis, the amount of bio-oil produced was also increased with a decrease in biochar yield. The highest yield of bio-oil was found to be 55.53% at a pyrolysis temperature of 700℃ with a yield of biochar and syngas was 24.22% and 20.25%, respectively. The GC-MS analysis was used as a quantitative means to characterize the liquid pyrolysis product. The findings of GC-MS showed that bio-oil generated in this study was dominated by phenols and ketones. In conclusion, pyrolysis of OPEFB demonstrates significant potential for industrial applications to generate valuable products especially bio-oil, providing a renewable alternative to fossil fuels.Abstrak: Dalam satu dekade terakhir, pirolisis biomassa semakin mendapat perhatian di sektor energi terbarukan. Teknologi ini mengubah biomassa menjadi produk-produk yang bernilai seperti: bio-oil, biochar, dan gas. Bio-oil adalah produk cair dari pirolisis yang dapat digunakan sebagai bahan bakar boiler dan furnace, atau diproses lebih lanjut untuk menghasilkan bahan bakar minyak dan produk kimia. Dalam penelitian ini, bio-oil dihasilkan dari proses pirolisis lambat tandan kosong kelapa sawit (TKKS) pada berbagai kondisi suhu. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh suhu terhadap karakteristik produk yang dihasilkan dari pirolisis TKKS. Berbagai variasi suhu pirolisis dari rentang 300 hingga 700℃ digunakan untuk menghasilkan bio-oil. Hasil penelitian menunjukkan bahwa suhu pirolisis mempengaruhi yield produk dan karakteristiknya secara signifikan. Semakin tinggi suhu operasi pirolisis, jumlah bio-oil yang dihasilkan juga semakin meningkat, namun diikuti dengan penurunan yield biochar. Yield tertinggi bio-oil yaitu sebesar 55,53% diperoleh pada suhu 700℃ diikuti dengan yield biochar dan syngas masing-masing sebesar 24,22% and 20,25%. Analisis GC-MS digunakan sebagai metode kuantitatif untuk mengkarakterisasi produk cair dari pirolisis. Hasil GC-MS menunjukkan bahwa komposisi bio-oil yang dihasilkan dalam penelitian ini didominasi oleh senyawa fenol dan keton. Penelitian ini menjanjikan potensi dari pirolisis TKKS untuk aplikasi industri guna menghasilkan produk bernilai tinggi berupa bio-oil sebagai penyedia sumber energi terbarukan pengganti bahan bakar fosil.
Degradasi Limbah Detergen dengan Metode Fotokatalis Menggunakan TiO2 / Silica Gel Amelia, Shinta; Jamilatun, Siti; Shitopyta, Lukhi Mulia; Maryudi, Maryudi; W, Mila Utami; Sriyana, Ida
Eksergi Vol 20, No 3 (2023)
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v20i3.9214

Abstract

Limbah detergen dihasilkan dari laundry dan limbah rumah tangga yang menyebabkan pencemaran air yang merusak organisme dalam perairan. Detergen terdiri atas tiga komponen utama, yaitu surfaktan, builders dan aditif. Surfaktan jenis Alkyl Benzene Sulfonat (ABS) dan Linear Alkylbenzene Sulfonate (LAS) merupakan senyawa aktif detergen. Tujuan dari penelitian ini untuk mempelajari proses degradasi fotokatalis dalam menurunkan konsentrasi LAS dan ABS dengan variabel bebas konsentrasi bahan aktif detergen dan waktu penyinaran. Pengolahan limbah detergen yang digunakan pada penelitian ini adalah metode fotokatalis TiO2 dengan penyangga silica gel. Variasi konsentrasi LAS dan ABS yaitu 50 ppm dan 100 ppm menggunakan katalis silica gel /SiTiO2 sebanyak 0,05gram dengan variasi waktu penyinaran sinar UV sampai 24 jam. Persentase degradasi yang dihasilkan dalam waktu 24 jam dengan katalis silica gel-TiO2 pada ABS 50 ppm yaitu 96,08% dan ABS 100 ppm yaitu 99,00%. Sedangkan Persentase degradasi yang dihasilkan dalam waktu 24 jam dengan katalis silica gel-TiO2 pada LAS 50 ppm yaitu, 96,61% dan LAS 100 ppm yaitu 99,61%. Penggunaan katalis silica gel - TiO2 dalam LAS lebih efektif dan  mempunyai sifat yang lebih baik dibandingkan ABS karena LAS mudah terurai sehingga semakin lama penyinaran warna larutan menjadi pudar dan proses degradasi fotokatalis menjadi lebih mudah.
Combustion Quality Analysis of Bio-Briquettes from Mixture of Coconut Shell Waste and Coal with Tapioca Flour Adhesive Hakika, Dhias Cahya; Jamilatun, Siti; Zahira, Shafa; Setyarini , Riska; Rahayu, Aster; Sri Ardiansyah, Remmo
Indonesian Journal of Chemical Engineering Vol. 1 No. 1 (2023)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26555/ijce.v1i1.452

Abstract

Agroindustry residues can be utilized as a resource for alternative energy sources such as bio-briquettes. Using agro-industry residue is also a solution to reduce pollution caused by biomass waste in the environment. This article highlights the combustion quality analysis of biomass waste in the form of bio-briquettes with binding materials prepared from tapioca flour. The biomass used is a mixture of coconut shell charcoal and coal to improve the quality of the bio-briquettes. In this study, bio-briquettes were manufactured using a screw press system. The combustion quality of bio-briquettes with various percentage compositions (0:100, 25:75, 50:50, 75:25, 100:0) of coconut shell charcoal and coal was investigated, i.e., moisture content, ash content, combustion rate, and calorific value. Results show that the calorific value of most bio-briquettes produced in this study was higher than the standard calorific value according to  SNI Standard No.1/6235/2000 (≥ 5,000 cal/gr). The optimum composition to produce bio-briquette with good quality based on the standard is 75:25 (coconut shell charcoal: coal), which had a moisture content of 7.6325%, ash content of 6.9697%, combustion rate of 0.1833 gr/min, and caloric value of 5833.78 cal/gr.
Review: Biochar from Co-Pyrolysis of Biomass and Plastic Jamilatun, Siti; Arifah, Zulia; Astuti, Erna; Aster, Rahayu; Sri Ardiansyah, Remmo
Indonesian Journal of Chemical Engineering Vol. 1 No. 1 (2023)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26555/ijce.v1i1.458

Abstract

Plastic and biomass waste disposal will increase if it is not accompanied by appropriate, efficient, and effective waste treatment. Recent research on the yield of charcoal produced by co-pyrolysis has shown that the product of co-pyrolysis of plastic and biomass raw materials is a beneficial additive with a variety of applications, ranging from soil and water improvement, increasing agricultural yields, fuel cells, supercapacitors, as a support/ catalysts, sustainable chemistry, and carbon sequestration. Therefore researchers need to ensure the quality of the results of co-pyrolysis in the form of biochar obtained from any raw material and process to provide maximum benefits, mainly from biomass and plastic raw materials. This study aims to review the formation of biochar from the co-pyrolysis of plastic and biomass raw materials by examining the raw materials, pyrolysis techniques, and the type of reactor used to identify the appropriate parameters. This review discusses biochar production techniques, pyrolysis technology mechanisms, types of pyrolysis, the type of reactor used, the properties of both biomass and plastic raw materials and the properties of biochar produced from various raw materials for comparison. Biochar will be obtained with maximum yield quality from the results of mixing the raw materials for biomass and plastic and optimal operating conditions. It can be an alternative in the bio-oil and syngas energy sector and reduce carbon emissions.
Review: Biomass-Based Hydrogen Production Technology Jamilatun, Siti; Muhtadin, Akhmad Sabilal; Nurmustaqimaha, Nurmustaqimaha
Indonesian Journal of Chemical Engineering Vol. 1 No. 2 (2023)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26555/ijce.v1i2.601

Abstract

One of the most efficient fuels for renewable energy is hydrogen. Currently, fossil fuels and their by-products produce most of the hydrogen with technologies that harm the environment, and fossil sources are rapidly decreasing in quantity. Environmentally friendly and pollution-free alternatives to fossil fuels are interesting to pursue. This paper explores advances in bio-hydrogen technology as an environmentally friendly and sustainable future technology development. Derivatives of crucial products from biomass, such as alcohol and glycerol, and methane-based reforming to produce hydrogen. Biological techniques to produce bio-hydrogen are exciting by fermentative, enzymatic, and biocatalytic methods. Also discussed are genetic engineering components, reactor configuration, and pretreatment. Low hydrogen yield and high cost are the two main problems in bio-hydrogen production. Also discussed are the costs, advantages, and disadvantages of various hydrogen generation methods. This article also discusses the promise of biohydrogen as a clean energy alternative and areas that require further research
Spirulina Platensis Residue (SPR) Pyrolysis: Temperature's Effect on Yield and Biochar Characteristics Jamilatun, Siti; Pitoyo, Joko; Arifah, Zulia
Indonesian Journal of Chemical Engineering Vol. 1 No. 2 (2023)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26555/ijce.v1i2.614

Abstract

Biochar has potential as alternative solution to overcoming the problem of renewable energy needs, improving land structure for agriculture, and supplying industrial needs as absorbent material with high absorption. Biochar has a high carbon content that it obtains from the biomass pyrolysis process. In this experiment, the main material was biomass obtained from the Spirulina platensis residual (SPR). The temperature effect on the yield and characteristic of biochar from SPR were studied. The research was conducted in the fixed-bed reactor with 40 mm of inside diameter, 44 mm of outside diameter, and 600 mm of height. The reactor was supported with an electrical heater from a nickelin coiled along the outside surface of reactor. The experiments were carried out with temperatures ranging from 300 to 700ºC. Biochar analysis was performed by the Brunauer-Emmett-Teller (BET) method. Results indicated that the yield of biochar decreased with increasing temperature. Conversely, the surface area, the total volume of pore, and the radius of pore increase with an increase in temperature. The best temperature conditions to produce the biochar are 600ºC, with the product yield of 27.9 wt.%, surface area of ​​13.5 m2/gr, total pore volume of 0.041 cc/gr, and diameter of 2,688 nm.
Heavy Metal Phytoremediation: Plant Hyperaccumulators and Clean Strategies for the Environment Nurmustaqimah; Jamilatun, Siti; Rahayu, Aster; Hakika, Dhias Cahya; Muthadin , Akhmad Sabilal; Taufiqurahman , Muhamad Akmal
Indonesian Journal of Chemical Engineering Vol. 2 No. 1 (2024)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26555/ijce.v2i1.672

Abstract

Increasing urbanization and industrialization have led to serious heavy metal pollution problems, detrimental to the environment and human health. Phytoremediation, which utilizes hyperaccumulator plants such as Indian mustard and water hyacinth, presents an efficient and sustainable alternative. Despite having the advantages of low cost and utilization of renewable natural resources, phytoremediation also carries risks, such as contamination of consumable plant parts and limited efficiency. Therefore, selecting the right hyperaccumulator plants and having an in-depth understanding of phytoremediation mechanisms are the keys to increasing their success. Phytoremediation mechanisms, such as phytoextraction, hemofiltration, and phytostabilization, can be implemented by considering environmental conditions and contaminants. Factors such as the nature of the medium, root zone, and environmental conditions play a crucial role in determining the effectiveness of phytoremediation. Although challenges still exist, phytoremediation remains a promising approach to treating heavy metal pollution in an economical and environmentally friendly manner.
PEMERIKSAAN IVA DI UPTD PUSKESMAS RI RAJABASA KECAMATAN RAJABASA KABUPATEN LAMPUNG SELATAN Karmila Astuti; Yona Desni Sagita; Ririn Martina; Siti Jamilatun; Elies Permatasari
EZRA SCIENCE BULLETIN Vol. 2 No. 1 (2024): January-June 2024
Publisher : Kirana Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58526/ez-sci-bin.v2i1.77

Abstract

Hingga saat ini kanker masih menjadi salah satu penyebab kematian tertinggi di dunia, dimana hampir 70 % kematian karena kanker terjadi di Negara berkembang termasuk Indonesia. Pada tahun 2020 tercatat kematian yang disebabkan oleh kanker sebanyak 10.000.000 (World Health Organization,2020). Di Indonesia kanker leher rahim menjadi kanker terbanyak kedua jumlah kasusnya dengan jumlah 36.633 (17,2 %) setelah kanker payudara. 30-50% kematian akibat kanker masih dapat di cegah dengan menghindari faktor resiko dan melakukan deteksi dini secara berkala. Pemeriksaan IVA adalah upaya paling mudah untuk mendeteksi dini kanker leher rahim secara dini, dan sangat dianjurkan bagi wanita dengan riwayat kanker leher rahim dalam keluarga, memiliki lebih dari satu pasangan seksual, atau pernah mengalami infeksi menular seksual. Tujuan pengabdian masyarakat ini adalah untuk meningkatkan keterampilan mahasiswa profesi bidan serta meningkatkan pengetahuan dan edukasi masyarakat tentang pemeriksaan IVA. Pelaksanaan dalam kegiatan pengabdian masyarakat ini diikuti oleh wanita usia subur di wilayah kerja UPT Puskesmas Rajabasa yang berjumlah 10 orang. Metode yang digunakan dalam kegiatan ini melalui ceramah dan diskusi serta tanya jawab tentang kegunaan pemeriksaan IVA dan dilanjutkan dengan pemeriksaan IVA. Kegiatan ini dilaksanakan untuk meningkatkan pengetahuan wanita usia subur tentang kegunaan pemeriksaan IVA untuk mendeteksi secara dini kanker leher rahim.
MAKANAN YANG MEMPERLANCAR PRODUKSI ASI (AIR SUSU IBU) UNTUK MENDUKUNG ASI EKSLUSIF DI DESA KOTA GURING KECAMATAN RAJABASA KABUPATEN LAMPUNG SELATAN Karmila Astuti; Maya Fadilah; Elies Permatasari; Eliyantini; Siti Jamilatun; Efi Nopianti; Yesi Yuniasari; Siti Hartini; Ria Rosania; Eka Noviana; Rosdamayanti
EZRA SCIENCE BULLETIN Vol. 2 No. 2 (2024): July-December 2024
Publisher : Kirana Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58526/ez-sci-bin.v2i2.169

Abstract

Upaya untuk memperlancar ASI dapat dilakukan dengan mengkonsumsi makanan dan obat tradisional. Obat tradisional dapat kita perolah dari tumbuhan yang ada di lingkungan sekitar seperti daun kelor, Daun Katuk, dan daun papaya yang mana tanaman tersebut mudah didapat dan tumbuh subur di desa tersebut , dan yang selama ini mereka hanya tahu manfaat dari daun tersebut hanya di jadikan sayuran saja. Pengabdian kepada masyarakat ini bertujuan untuk memberikan pengetahuan kepada ibu menyusui tentang ASI eklusif, manfaat ASI dan makanan yang dapat meningkatkan produksi ASI. Metode yang digunakan adalah penyuluhan dibantu dengan menggunakan layar LCD dan Leaflet yang dibagikan kepada ibu menyusui. Diikuti oleh 20 orang ibu menyusui, diawali dengan pretest,kemudian memberikan materi tentang ASI eklusif dan cara meningkatkan produksi ASI dan melakukan praktik pembuatan puding daun kelor dan putu ayu daun kelor dengan menggunaan media leaflet, dan memutar video, diakhiri dengan posttest, Dapat disimpulkan bahwa terjadi peningkatan pengetahuan dan keterampilan ibu menyusui dengan melakukan inovasi olahan daun kelor setelah dilakukan pengabdian masyarakat di Desa Kota Guring.
Co-Authors Adhi Chandra Purnama Adi Permadi, Adi Agus Aktawan, Agus Alfian Ma’arif Amelia, Shinta Anak Agung Istri Sri Wiadnyani Anggun Puspitasari Anisa Salsabila Arief Budiman Arief Budiman Arief Budiman Arief Budiman Arief Budiman Arifah, Zulia Aster Rahayu Aster, Rahayu Auliasari, Putry Ayu Avido Yuliestyan Budhijanto Budhijanto Budhijanto Budhijanto, Budhijanto Budhijanto, B. Defiani Putri Denanti Dhias Cahya Hakika Dhias Cahya Hakika Dhias Cahya Hakika Dita Permata Putri Dwi Astri Ayu Purnama Dwi Astri Ayu Purnama Dwita Sarah Efi Nopianti Eka Noviana Elies Permatasari Eling Widya Suminar Eliyantini Erna Astuti Eva Nurdiana Putri Fajriansya Gonibala Febriani, Annisa Vada Firanita Anggraini H Hadiyanto Hadi Nasbey Hanum, Farrah Fadhillah Hanum, Farrah Hanum Hapsauqi, Iqbal Heidy Oktavia Nisa Ikko Nirwana Luthfiani Ilham Mufandi Ilham Mufandi Ilham Mufandi Ilham Mufandi Ilham Mufandi Ilham Mufandi Imelda Eka Nurshinta Imelda Ika Nurshinta Intan Dwi Isparulita Irfan Maulana Putra Irwan Mulyadi Isparulita, Intan Dwi Joko Pitoyo Joko Pitoyo Joko Pitoyo Joni Aldilla Fajri Karmila Astuti Lee Wah Lim Lia Aslihati Lukhi Mulia Shitophyta Lukhi Mulia Sithopyta Lukman Hakim Lutfiatul Janah M. Idris Martomo Setyawan Maryudi Maryudi Maya Fadilah Muhammad Aziz Muhammad Haryo Setiawan Muhammad Nufail Syafii Muhtadin, Akhmad Sabilal Muthadin , Akhmad Sabilal Mutia Endar Nurhidayah Nabila Fauzi Nafira Alfi Zaini Amrillah Nihanzah, Ardian Surya Putra Nirmalasari, Jiran Nur Aini Aini Nur Kholis Nuraini Nuraini Nurmustaqimah Nurmustaqimah, Nurmustaqimah Nurmustaqimaha, Nurmustaqimaha Nurmutaaqimah Putri, Firanita Angraini Rahayu Aster Rahayu, Aster Ratih Mahardhika Remmo Sri Ardiansyah Resyaldi Pratama Rhomadoni, Firda Rizki Ria Rosania Rifka Alfiyani Ririn Martina Riska Setyarini Riska Utami Melani Putri Riska Utami Melani Putri Rochmadi Rochmadi Rochmadi Rochmadi Rochmadi, R. Rosdamayanti Salsabila, Anisa Setya Wardhana, Budi Setyarini , Riska Shafa Zahira Shinta Amelia Shinta Amelia Shitopyta, Lukhi Mulia Siti Hartini Siti Nurhalizatul Aini Siti Salamah Siti Salamah Soedjatmiko Sofiana, Nurani Sri Ardiansyah, Remmo Sriyana, Ida Suhendra Suhendra Suhendra Taufiqurahman , Muhamad Akmal Totok Eka Suharto Tyas Aji Kurniawan Utaminingsih Linarti, Utaminingsih Veranica Veranica W, Mila Utami Wardhana, Budi Setya Yeni Elisthatiana Yesi Yuniasari Yona Desni Sagita Zahira, Shafa Zahrul Mufrodi Zahrul Mufrodi, Zahrul Zulia Arifah Zulia Arifah