Article Per Year (5 Year)
p-Index From 2021 - 2026
4.024
P-Index
This Author published in this journals
All Journal VALENSI Jurnal Penelitian Hasil Hutan Jurnal Sains Teknologi dan Lingkungan (JSTL) ALCHEMY Jurnal Penelitian Kimia Indonesian Journal of Chemistry Sains Natural: Journal of Biology and Chemistry QARDHUL HASAN: MEDIA PENGABDIAN KEPADA MASYARAKAT Jurnal Kartika Kimia EKOLOGIA : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Jurnal Penelitian Hasil Hutan Makara Journal of Science Helium: Journal of Science and Applied Chemistry Jurnal Penelitian Hasil Hutan Jurnal Pengabdian Masyarakat Inovatif Jurnal Pengabdian Masyarakat Inovatif Helium: Journal of Science and Applied Chemistry
Iryani, Ani
Universitas Pakuan
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Education Energy Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Public Health Social Sciences Other

Published : 30 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 30 Documents
Search

 1   2   3 
Effectiveness Hydroxyapatite from Chicken Eggshells for Adsorption of Chromium (VI) Metal Ion Electroplating Waste Afifah Nur Ismawati; Ani Iryani; Linda Jati Kusumawadani
Helium: Journal of Science and Applied Chemistry Vol 3, No 1 (2023): Helium: Journal of Science and Applied Chemistry
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/helium.v3i1.7929

Abstract

The largest source of waste comes from household activities. One of the wastes that comes from household activities is chicken eggshells waste. Chicken eggshells contain 94% CaCO3 and can be used as a source of calcium to synthesize hydroxyapatite (Ca10(PO4)6(OH)2) by the precipitation method. Hydroxyapatite can be used as an adsorbent material because it has pores, inert, and wear-resistant so it can adsorb dissolved metal ions Cr (VI) contained in liquid waste from electroplating process. This research aims to synthesize hydroxyapatite from chicken eggshells and determine the optimum pH, contact time, adsorbent mass, and initial concentration of waste which influence the adsorption efficiency using continuous system column adsorption method with fixed flow rate 25 mL/min. In this study, the metal ions Cr (VI) was chosen as adsorbate because Cr (VI) is the main component in electroplating process. This research started from preparation of chicken eggshells waste then synthesized into hydroxyapatite and characterized using XRD, FTIR, and SEM that known structure formed adsorbent is hydroxyapatite and measuring the initial Cr (VI) concentration in waste using AAS with wavelength 357,9 nm. The result of optimizing are the optimum pH 5, contact time of 60 minutes, 3,5 gram of adsorbent mass, and the initial concentration of waste is 10 ppm. The analyzed were done for Cr (VI) concentration. The result showed 99,48% adsorption efficiency with final concentration of Cr (VI) is 0,07 ppm. The adsorption process followed the Freundlich isotherm model with maximum adsorption capacity of 3,93 mg/g hydroxyapatite.
Sintesis dan Karakterisasi Komposit Eugenol-Silika Gel dari Abu Tongkol Jagung serta Analisis Antibakteri dan Daya Serap terhadap Air Muhammad Fathurrahman; Usep Suhendar; Ani Iryani; Diana Widiastuti; Sherin Nurhafidza Ahmad; Esya Juniar
ALCHEMY Jurnal Penelitian Kimia Vol 18, No 1 (2022): March
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.18.1.47161.10-18

Abstract

Tongkol jagung mempunyai kandungan silika yang cukup tinggi, yaitu 67,41% dari total abunya yang memungkinkan untuk dimanfaatkan untuk pembuatan komposit eugenol-silika gel. Penelitian ini bertujuan mempelajari pembuatan komposit eugenol-silika gel dengan bahan dasar abu tongkol jagung menggunakan metode sol gel, diikuti dengan analisis daya serap air dan aktivitas antibakteri terhadap E. coli dan S. aureus. Komposit eugenol-silika gel ini dikarakterisasi menggunakan Fourier Transform Infrared (FTIR), X-ray Diffraction (XRD), Scanning Electron Microscope (SEM) dan Thermogravimetric Analysis (TGA). Hasil karakterisasi dengan FTIR menunjukkan bahwa sintesis komposit eugenol-silika gel berhasil dilakukan. Analisis menggunakan XRD menunjukkan bahwa komposit eugenol-silika gel memiliki bentuk amorf. Karakteristik mikrostruktur menggunakan SEM menunjukkan permukaan yang tidak merata dan terdapat gumpalan (cluster) yang menandakan adanya bentuk butiran-butiran yang beragam berbentuk bulat atau globular pada permukaan komposit eugenol-silika gel. Analisis termogravimetri yang dilakukan sampai suhu 600 °C menunjukkan total prosentase pengurangan massa komposit eugenol silika-gel sebesar 13,10%. Daya serap air komposit eugenol-silika gel memiliki nilai persentase yang lebih tinggi dibandingkan dengan silika gel food grade. Akan tetapi, komposit eugenol-silika gel tidak memiliki aktivitas antibakteri terhadap E. coli dan S. aureus.Synthesis and Characterization of Eugenol-Silica Gel Composite from Corn Cob Ash and Analysis of Antibacterial and Water Absorption. Corn cobs have high silica content, specifically 67.41% of the total ash, possibly used for eugenol-silica gel composite manufacture. This study aims to synthesize eugenol-silica gel composite with corn cob ash as the base material by sol gel method, followed by analyzing water absorption and antibacterial activity against E. coli and S. aureus. The method used is the sol-gel method. This eugenol-silica gel composite was characterized using Fourier Transform Infrared (FTIR), X-ray Diffraction (XRD), Scanning Electron Microscope (SEM), and Thermogravimetric Analysis (TGA). The characterization results by FTIR showed that the synthesis of the eugenol-silica gel composite was successfully carried out. Analysis using XRD showed that the eugenol-silica gel composite had an amorphous form. Microstructural characteristics using SEM showed an uneven surface and clusters indicating the presence of various globular or spherical shapes on the surface of the eugenol-silica gel composite. Thermogravimetric analysis carried out until a temperature of 600 °C showed the total percentage reduction in mass of the eugenol silica-gel composite was 13.10%. The water absorption of eugenol-silica gel composite has a higher percentage value than food-grade silica gel. However, eugenol-silica gel composite has no antibacterial activity against E. coli and S. aureus. 
HUJAN ASAM DAN LEACHING Fe KE DALAM AIR SUMUR DI WILAYAH INDUSTRI - Sutanto; Ani Iryani; Syaiful Anwar; Tania June
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 11, No 1 (2011): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekol.v11i1.247

Abstract

Wilayah Cibinong-Citeureup terdapat banyak industri, berdebu, dan telah mengalami hujan asam. Salah satu dampak hujan asam adalah degradasi kualitas air sumur. Lebih kurang 75% penduduk di wilayah ini yang memanfaatkan air sumur sebagai air minum. Telah dipelajari distribusi dan dampak hujan asam terhadap peningkatan kadar Fe dalam air sumur. Monitoring air hujan dilakukan pada 30 menit pertama hujan pada 16 lokasi dari tahun 1999 sampai 2009. Data keasaman air hujan setiap tahun dipetakan menggunakan program sufer 6, selanjutnya dilakukan overlay dan diidentifikasi daerah yang mengalami hujan asam intensitas tinggi secara terus-menerus. Monitoring kadar Fe air sumur dilakukan pada 16 lokasi sumur dari tahun 1999 sampai 2009. Keasaman air diukur menggunakan pH meter elektronik, dan Fe ditentukan dengan metoda o-fenantrolin menggunakan spektrofotometer UV-VIS. Hasil penelitian menunjukkan bahwa daerah yang terus-menerus mengalami hujan asam intensitas tinggi (pH5,0) terjadi seluas 4 km2. Dalam daerah hujan asam intensitas tinggi ini keasaman air hujan terus meningkat dari tahun 1999-2009. Peningkatan keasaman air hujan  menyebabkan leaching Fe ke dalam air sumur secara nyata (P 0,049, 95%). Kata kunci :  Hujan asam,, leaching, Fe,  air sumur, industri
EFISIENSI DAN EFEKTIFITAS SERTA KINETIKA ELEKTROKOAGULASI PENGOLAHAN LIMBAH SAGU AREN - Sutanto; Ani Iryani; - Sarahwati
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 18, No 1 (2018): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekol.v18i1.802

Abstract

The processing of palm sago into flour produces unsightly brownish wastewater with high COD and TSS values and very low DO. Waste treatment to reduce waste parameter values can be done one of them by electrocoagulation method. This study was conducted to determine the effectiveness of processing sago wastewater by electrocoagulation and decreasing kinetics of TSS and COD. Electrocoagulation batch system was carried out using 5 x 10 cm aluminum electrode, 3 cm electrode distance. Application of voltage variations: 15; 18; and 20 volts with electrocoagulation time variation 15; 30; and 60 minutes. The results showed that the best electrocoagulation at 18 volts and 60 minutes time, namely the efficiency of reducing TSS and COD values respectively 89.17% and 58.28%, and can increase the DO value from 2.5 to 6.8 mg / L The kinetics of decreasing TSS and COD follow the one order with a constant decrease of respectively - 0.012 and -0.013 per minute.Key words: Electrocoagulation, palm sago liquid waste, TSS, COD
Chicken Bone Based Adsorbent for Adsorption of Pb(II), Cd(II), and Hg(II) Metals Ion Liquid Waste Uswatun Hasanah; Ani Iryani; Agus Taufiq; Dimas Apryandi Darma Putra
Helium: Journal of Science and Applied Chemistry Vol 1, No 1 (2021): Helium: Journal of Science and Applied Chemistry
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/helium.v1i1.2949

Abstract

High productivity of chicken meat for supplying society also make some impact in high productivity of chicken bone and because its unraveling properties makes this become waste. Pharmaceuticals Waste comes from production process, adstertion of production tools, laboratory activities and rejected product. Laboratorys routine analysis also producing residual waste analysis, one of the source is come from heavy metals analysis of Pb, Cd, dan Hg. General process for waste treatment producing high quantity of sludge, mean while using third party service have impact in high costing of transportation and treatment process. An alternatif way for this case is using sorption treatment. Initial research starts from preparation of chicken bone-based adsorbent and its characterization using SEM and FTIR, followed by quality analysis of fresh waste (which is waste A and waste B) observed at pH, COD, TDS, TSS also Pb, Cd, dan Hg metals. Adsorption process was observed from adsorbents graying temperature, adsorbents particle size, contact time, pH of waste, and adsorbents weight. Best result from adsorption process were applicated at fresh waste and simulation waste of Pb, Cd, and Hg metals also re-testing quality analysis of fresh waste and simulation waste for before-after result comparing purpose. The purpose of this research is for characterizing chicken bone-based adsorbent, observing adsorption process of  Characterization of chicken bone ash based adsorbent has been carried out in adsorbing Pb, Cd, and Hg metals in pharmaceutical laboratory waste. Functional group analysis with Fourier Transform Infrared Spectrophotometer (FTIR) showed that the chicken bone ash adsorbent contained the mineral compound apatite carbonate. Surface morphology with a Scanning Electron Microscope (SEM) shows that the adsorbent surface is porous and appears to be adsorbing metals. From the adsorption observations, it was found that the best adsorption conditions were at an ashing temperature of 800 oC, particle size of 80 mesh, contact time of 30 minutes, waste conditions at pH 6 and an adsorbent weight of 600 mg. Application chicken bone-based adsorbent against pharmaceutical waste shows its existence improve the quality of waste but still do not meet the quality standard requirements for Hg metal.
Study of Reaction Kinetics and Identification of Clotrimazole Degradation Compounds in Anti-Fungal Cream Preparations Cellia Christiana Batubara; Ani Iryani; Linda Jati Kusumawardani
Helium: Journal of Science and Applied Chemistry Vol 1, No 2 (2021): Helium: Journal of Science and Applied Chemistry
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/helium.v1i2.4540

Abstract

Fungal infections of the skin can be treated with antifungal compounds, one of which is clotrimazole. Under certain conditions, clotrimazole can be degraded to imidazole and (o-chlorophenyl) diphenyl methanol which can cause skin irritation. This is because the storage conditions of the drug product during or after use if it is not suitable, can interfere with the stability of the drug product. Therefore, this study was conducted to obtain information regarding changes in clotrimazole levels, reaction order, reaction constant value, half-life, activation energy, and the possibility of compounds formed after the clotrimazole degradation process to determine the good storage conditions of the product. Clotrimazole levels were tested in the open and closed state of the packaging every day at different storage temperatures for three months. Changes in clotrimazole levels were measured using HPLC every week. In addition, the identification of compounds resulting from degradation was also tested using HPLC every month and continued using LC-MS/MS in the last week. The results of the analysis of clotrimazole levels, there was a decrease in levels but still in accordance with the specifications required by the Indonesian Pharmacopoeia. The greatest decrease in levels occurred in samples stored at a temperature of 40±2oC which reached 9133%. The decrease in clotrimazole levels followed a first-order reaction with the shortest half-life of 90 weeks and activation energy of 18.9 kJ/mol. Identification of the degraded compounds using HPLC and LC-MS/MS found imidazole compounds and (o-chlorophenyl) diphenyl methanol in samples stored at 25±2oC and 40±2oC. These compounds can cause skin irritation, but these compounds may not have a serious impact because they have a fairly large body threshold value of 220 mg/kg. This shows that clotrimazole cream stored at various temperatures, both at 5±2oC, 25±2oC, and 40±2oC can still be used for three months after the packaging is opened according to the in-use shelf life.
Comparison of Analysis Results pf pH, TSS, COD and Ammonia in Industry Wastewater with Sparing and SNI Methods Dessy Nur Indryastuti; Ani Iryani; Muhammad Fathurrahman
Helium: Journal of Science and Applied Chemistry Vol 2, No 2 (2022): Helium: Journal of Science and Applied Chemistry
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/helium.v2i2.6342

Abstract

Sparing is a development of sensor technology to monitoring wastewater quality continuously and online, so it can be done in real time. Wastewater quality monitoring carried out in the laboratory using the SNI method still has several drawbacks, including large analysis costs, long analysis time and the use of chemicals that are not environmentally friendly. This study aims to determine the differences in the results of the analysis of the Sparing method with SNI on the parameters of pH, TSS, COD, and ammonia in the EWTP wastewater of PT "X" using statistical processing through the F-test and T-test. The research stages include sampling, sample storage and analysis in the laboratory. Based on the results of the study, it can be concluded that the differences in the method of Sparing analysis and SNI are not significantly different to the pH parameters in the measurement range 6.77 - 6.88; TSS in the measurement range 9.486 - 12.343 mg/L; COD in the measurement range of 55.402 - 59.274 mg/L and ammonia in the measurement range of 0.368 - 0.405 mg/L. This proves that the Sparing method can replace the SNI method for routinely monitoring the quality of EWTP wastewater of PT "X".
Modification of Zeolite Made from Coal Fly Ash with TiO2: Effect of Aging Time on Physical and Optical Properties Kusumawardani, Linda Jati; Iryani, Ani; Sinaga, Ennita Lusiana
Makara Journal of Science Vol. 27, No. 1
Publisher : UI Scholars Hub

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

Abstract

The high levels of metal oxides, SiO2, and Al2O3 give coal fly ash the potential for development into zeolite. Zeolite was prepared from fly ash by combining alkaline fusion with hydrothermal treatment. Using this method results in a high surface area, high mechanical properties, and high crystallinity of the sample. Zeolite as a product is modified by TiO2. This study was intended to determine the effect of the operating process in zeolite synthesis from coal fly ash on the types and properties of zeolite and the effect of the aging time of TiO2-modified zeolite at 14, 16, and 20 h. Investigating its physical and optical properties shows that the product contains zeolite X as the major phase. The zeolite X itself contains 96% crystallinity and a specific surface area of 164.78 m2/g. Meanwhile, TiO2/zeolite increases the light absorption in the visible region. Diffuse reflectance spectroscopy showed that a 14 h aging time results in the lowest band gap energy of 2.50 eV and the largest surface area of 189.483 m2/g. X-ray diffraction characterization found that TiO2/zeolite is an anatase crystal (~9 nm) with 99% crystallinity. A pilot examination of the photodegradation performance of the TiO2/zeolite nanocomposite was evaluated using 5 mg/L methylene blue and compared with that of zeolite alone.
PEMBERDAYAAN MASYARAKAT NON PRODUKTIF MELALUI KETERAMPILAN PEMBUATAN TAWAS DARI LIMBAH KALENG BEKAS MINUMAN Iryani, Ani; Sutanto, Sutanto; Fathurrachman, Muhammad
Qardhul Hasan: Media Pengabdian kepada Masyarakat Vol. 3 No. 2 (2017): OCTOBER
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (373.493 KB) | DOI: 10.30997/qh.v3i2.945

Abstract

PEMBERDAYAAN MASYARAKAT NON PRODUKTIF MELALUI KETERAMPILAN PEMBUATAN TAWAS DARILIMBAH KALENG BEKAS MINUMANABSTRACT Leuwiliang Village, Leuwiliang District, Bogor Regency, is a village that has a fairly dense population with diverse livelihoods. Village Government information is known as 25% of the population has not had a job, so classified as a non-productive society with a very limited educational background and skills. The people of this group are right as partners of abdimas to be given an advanced skills in order to be independent. In this abdimas given the skill to make alum from waste used drink cans. The existing hope can transform into a working society and become a productive society. Instead it can improve the economic prosperity of the village. Abdimas this time was chosen from RW 10 residents of Leuwiliang village with potential both men and women. In addition, also selected the Foundation of Islamic Education Saefulloh Assa'diyyah (YAPISA) which can provide a means of producing alum from the raw materials used tin cans. Implementation of this program is done through training and demonstration skill of alum making from raw materials of beverage cans for household scale until finished product with good alum quality, this training had be done 4 time in July and August 2017. The results are very satisfying, the community was very enthusiast, they able to make alum products well and able to demonstrate how to use alum products for purification of turbid water.Keywords: abdimas, alum, KOH, waste used tin cans. ABSTRAK Desa Leuwiliang Kecamatan Leuwiliang Kabupaten Bogor, adalah desa yang memiliki jumlah penduduk cukup padat dengan mata pencaharian yang beragam. Dari informasi pemerintah Desa Leuwiliang diketahui sebanyak 25% penduduk belum memiliki pekerjaan, sehingga tergolong sebagai masyarakat non-produktif dengan latar belakang pendidikan dan keterampilan yang sangat terbatas. Masyarakat kelompok ini tepat sebagai mitra Abdimas untuk diberikan keterampilan lanjut agar bisa mandiri. Pada abdimas ini diberikan keterampilan membuat tawas dari limbah kaleng bekas minuman. Harapan yang ada dapat mengubah menjadi masyarakat berkarya serta menjadi masyarakat yang produktif. Alih-alih dapat meningkatkan kesejahteraan ekonomi di desa tersebut. Abdimas kali ini dipilih dari warga RW 10 Desa Leuwiliang yang potensial baik laki-laki maupun perempuan. Selain itu dipilih juga Yayasan Pendidikan Islam Saefulloh Assa’diyyah (YAPISA) yang dapat menyediakan sarana berupa tempat memproduksi tawas dari bahan baku berupa kaleng bekas. Pelaksanaan program ini dilakukan melalui pelatihan dan demontrasi keterampilan pembuatan tawas dari bahan baku kaleng bekas minuman untuk skala industri rumah tangga sampai dihasilkan produk jadi dengan kualitas tawas yang baik. Pelatihan ini dilaksanakan 4 kali pada bulan Juli dan Agustus 2017. Hasil yang didapat sangat memuaskan, masyarakat sangat antusias mengikuti tahap demi tahap pelatihan dan mampu membuat produk tawas dengan baik dan mampu memperagakan bagaimana menggunakan produk tawasnya untuk menjernihkan air keruh.
Photodegradation Of Methyl Orange (MO) Using TiO2/Zeolite From Coal Fly Ash Waste Under Acidic Conditions and H2O2 Addition Prakoso, Muhamad Iqbal; Maharani, Khairy Yunda; Ariq, Muhammad Rizki; Indah, Amalia Nurul; Apriansyah, Apriansyah; Iryani, Ani; Kusumawardani, Linda Jati; Syahputri, Yulian
Helium: Journal of Science and Applied Chemistry Vol 4, No 1 (2024): Helium: Journal of Science and Applied Chemistry
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/helium.v4i1.9503

Abstract

This study aims to degrade methyl orange dye by a photocatalytic method using TiO2/zeolite nanocomposite. The zeolite used is sourced from coal waste fly ash. While the TiO2/Zeolite nanocomposites were synthesized by the sol-gel method and analyzed using UV-Vis DRS to determine the band gap energy. The band gap energy obtained from calculation results of the Kubelka-Munk formula shows a value of 2.0 eV. This indicates that the working area of methyl orange photodegradation using TiO2/zeolite is in visible light. Optimization of the methyl orange photodegradation process in this study will be carried out in an acidic environment by varying the nanocomposite dose (0.05; 0.1; 0.2; 0.3; and 0.4 g) and the length of time of irradiation (15; 30; 45; 60; and 75 minutes). This study also conducted a study on the effect of adding H2O2. The optimum yield of percent degradation (%D) of methyl orange (MO) obtained was 98.37% from initial concentration 10 mg/L to 0,16 mg/L with varying doses of TiO2/zeolite 0.1 g and 30 minutes in an acidic environment and the addition of H2O2.
Co-Authors - Sarahwati - Sutanto . Apriansyah Afifah Nur Ismawati Agus Taufiq Angelica Paramasari Angelica Paramasari Ariq, Muhammad Rizki Cellia Christiana Batubara Dadang Setiawan Darussalam, Muhamad Virgi Dessy Nur Indryastuti Diana Widiastuti Dimas Apryandi Darma Putra Djoko Hartanto Esya Juniar Farida Nuraeni Fathurrachman, Muhammad Hadi Nur Hasanah, Retna Hery Widijanto Indah, Amalia Nurul Intan Wulandari Juniansyah, Ronaldo Linda Jati Kusumawadani Linda Jati Kusumawardani Linda Jati Kusumawardani Lisna Efiyant Lisna Efiyanti Maharani, Khairy Yunda Mardi Santoso Muhammad Fathurrahman Muhammad Fathurrahman Muhammad Fathurrahman Nela Rahmati Sari Nela Rahmatisari Novitri Hastuti Novitri Hastuti Nurlela Nurlela Poedji Hastoeti Poedji Hastuti Prakoso, Muhamad Iqbal Pratiwi, Fany Dwi Purnama, Dicky Budhi Ramadhini, Dania Sherin Nurhafidza Ahmad Shinta Safitri Sinaga, Ennita Lusiana Siti Kholisoh Siti Warnasih Sutanto Sutanto Sutanto Sutanto Sutanto Syaiful Anwar Tania June Usep Suhendar Uswatul Hasanah Uswatun Hasanah Uswatun Hasanah Widdyanti, Tutik Yulian Syahputri Zulfa, Naura Devana