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Journal : MINERAL

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Evaluasi Produksi Kaksa Dalam Upaya Pencapaian TargetPemindahan Tanah Bulanan Sebesar 30.000 m3 DI TB.2.1 Tempilang, PT Timah (Persero) Tbk: Evaluation of Kaksa Production in Efforts of 30.000 m3 Earthmoving Monthly Target Achievementsin TB.2.1 Tempilang, PT Timah (Persero) Tbk Ramona, Pisca; Irvani, Irvani; Mardiah, Mardiah
MINERAL Vol 2 No 1 (2017): MINERAL
Publisher : Program Studi Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v2i1.1547

Abstract

Earthmoving target of 30,000 m3 in TB.2.1 Tempilang reached in March where production amounted to 36.350 m3, but the decline occurred in April at 1,83% with amount of production is 29.450 m3 and in May 46% with amount of production is 16,200 m3. Evaluation was conducted against the data rate of excavation In March until May, 2016. Other than that, evaluation of factors of production activities the influential hearts with how to calculate productivity tool for the reviews to know the tool's ability to produce kaksa, reviewing data that stop-time increasing production, the rate of rainfall, and sediment property value with the observe incision drill profile block in March, April, and May 2016. Based on the findings of evaluation, main factors failure achievement of production is time road experienced a decline of 05 hours during the month of April and 138 hours In May due to damage to the equipment and high rainfall reached 332 mm. Monthly soil removal target can be achieved with change hours number: Available 8 hours / day Being 10 hours / day.
Pengaruh Penambahan NaOH dan Ca(OH)2 Terhadap Penurunan Kadar Logam Berat (Fe) di Kolong Tambang 23 Desa Kimhin Kecamatan Sungailiat: The effect of the addition NaOH and Ca(OH)2 at reduced levels of heavy metal (Fe) in Tambang 23 Kimhin Village of Sungailiat Subdistrict Apriastuti, Elgatania Dwi; Mardiah, Mardiah; Pitulima, Janiar
MINERAL Vol 2 No 2 (2017): MINERAL
Publisher : Program Studi Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v2i2.1552

Abstract

Tin mining activity causes a lot of opening pit known as kolong in Bangka Island. Ecologically, kolong has function as retention reservoir that contain harmful acid water. Tin mining ex-pit potentially causes environment effects especially the quality and quantity of water contained heavy metal. One of kolong in Tambang 23 Kimhin Village of Sungailiat subdistrict contain a quite high of heavy metal of Fe in amount 2.18 mg/L that tested from the result of testing of Health Official Laboratorium of Bangka Regency. Therefore, this research conducted to decrease metal grade in the water kolong. This research focused based on metal grade of Fe value. Analysis conducted by counting the decrease of percentage of Fe metal grade. The method used in lowering metal grade was precipitation method using NaOH and Ca(OH)2 solution. Metal grade analysis used spectrophotometer. The aim of this research was to determine the influence of solution concentration, precipitation time and solution influence of NaOH and Ca(OH)2 in lowering Fe grade. The result of research showed the influence of adding precipitation of NaOH and Ca(OH)2 with the precipitation time. The longer time of precitipation, the bigger percentage of lowering Fe metal. The biggest percentage of Fe metal grade was on concentration of NaOH 6% and Ca(OH)2 3% with the lowering percentage of 88.99% and 96.33% respectively. The optimum time to precipitate Fe metal was in 60 minute. Based on research result showed that precitipation of NaOH better than Ca(OH)2.
Evaluasi Produktivitas Alat Gali-Muat dan Alat Angkut untuk Pengupasan Tanah Penutup Bulan Agustus 2016 Di Pit 3 Timur Penambangan Banko Barat PT Bukit Asam (Persero) Tbk: Evaluation of Load-Haulage Productivity In Top Soil Stripping Process On August 2016 In Pit 3 of West Banko Mine of PT Bukit Asam (Persero) Tbk Arrofah, Muhammad; Mardiah, Mardiah; Pitulima, Janiar
MINERAL Vol 2 No 2 (2017): MINERAL
Publisher : Program Studi Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v2i2.1564

Abstract

PT Bukit Asam (Persero), Tbk is a state-owned enterprise that operates in mining industry, particularly coal mining that has 4 main mining location. One of them is an east pit 3 of Banko Barat mining managed by PT SumberMitra Jaya. Mining process is exploited by using open pit methode which excavate overburden material using load-haulage equipment and transport system. Load-haulage equipments are used excavate, and to load overburden material, and transport system are used to carry overburden in disposal. This whole processes known as mechanical mining system. However, the actual condition of load-haulage productivity was only 84.56 % compared to determined target that caused overburden remova volume not to be achieved in amount of 15.44 %. Otherwise, evaluation of factors that affected performance of load-haulage equipment and transport system need to be conducted. Evaluation was conducted by calculating productivity, work efficiency, match factor of equipment, and load–haulage geometry. The data collected was cycle time, effective utilization, kind of material overburden and load-haulage geometry to get the value. Then, the collected data processed by using formula of mechanical soil movement and analysed based on literatures that related to the problem. The causing factors of load-haulage productivity in not achievement of determined target after evaluation conducted was low of work efficiency, amount of delay time in the amount of 1.19 minute caused by narrow transport roads, and low of match factor of equitment in the amount of 0.92. The alternatives that can be carried out to increase load-haulage productivity is increasing effective work time and widing transport road. Effective work time of transport system should be leveled up from 15.237 hour to 15.682 hour in fleet I and fleet II, and in fleet III should be leveled up from 14.122 hour to 14.567 hour. Thus, the total of transport system productivity will increase to 576,503.83 bcm/month from 486,247.59 bcm/month.
Optimalisasi Perencanaan Tambang Berdasarkan Pemilihan Kebutuhan Alat Berat Untuk Mencapai Target Produksi di Tambang Besar (TB 2.2) Tempilang Front 1 Kec. Tempilang Mitra PT Timah (Persero) Tbk: Optimalization Of Mine Planning Based On The Election Needs Of Load Haulage Equipment To Meet Production Target In TB 2.2 Tempilang Front 1 Of Tempilang Subdistrict Of PT Timah (Persero) Tbk’s Partner Supriyadi, Supriyadi; Mardiah, Mardiah; Akuan, Abrianto
MINERAL Vol 2 No 2 (2017): MINERAL
Publisher : Program Studi Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v2i2.1566

Abstract

Mining activities in TB 2.2 TempilangSite was conducted by Bahtera Sarindo Utama as a partner of PT Timah (Persero) Tbk.The method and technology used in mining site was Mechanical Mine as an alternative of conventional open pit mining which had been applied to overcome a great lack of hydraulic mining. There were several problems occurred in tin mining activities of TB 2.2 Tempilang included less of cycle time of gravel pump per day due to several problems that appeared in mine site such as gravel pump were often broken, Front Work landslides, so the production activity was inefficient. Mine planning of Mining mechanical methods plan Mechanics in TB 2.2 TempilangSite had production target of 320 m3 / h or 5,760 m3 / day. Therefore it was necessary to optimize the mining design to make it more efficient. The study included the election needs of load haulage equipment and conveyance based fleet to achieve production targets.Based on the results obtained, the need of equipment in hydraulic mine method for IDH work Front 1 to achieve production target was4 units of hydraulic pump, 4 units of gravel pump, 3 units of Excavators and 4 units of Articular Dump Truck with the total production of 5,976 m3 / day, and if using mechanical mine methodthe needs of load haulage equipment and conveyance for IDH removal was 1 fleet, 2 units of CAT 320D2 Excavator and 6 units of CAT 740B ADT with a total production of 6588.00 m3 / day with the production rate at 9.20 % greater than hydraulic mine and fleet 2 such us 1 unit of 345D CAT Excavator and 6 units of CAT 740B ADT 6 with the total production of 6468.12 m3/ day with the production rate at 7.60% greater than hydraulic mine.Based on the results obtained, mine lifetime of TB 2.2 TempilanFront 1 was 6,13 years using hydraulic mine method, 5,57 years for Mechanical mine of fleet 1 and 5.67 years for fleet 2. From these results suggested, that would better to use mechanical mine method in the removal of IDH in TB 2.2 Tempilang. With the availability of load haulage equipments and conveyance would counduct with fleet 1.
Evaluasi Realiasi Bijih Timah TB 1.42 PT Timah (Persero) Tbk Di Pemali Kabupaten Bangka: Evaluation Of Tin Ore Product Realization In TB 1.42 PT Timah (Persero) Tbk Of Pemali Bangka Regency Epi, Epi; Mardiah, Mardiah; Irvani, Irvani
MINERAL Vol 3 No 1 (2018): MINERAL
Publisher : Program Studi Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v3i1.1577

Abstract

TB 1.42 Pemaliwas managed PT Timah (Persero) Tbk. The mining system applied at TB 1.42 Pemali is a mechanical mining system where the mining system activities are conducted by transferring the excavation result of kaksa from work front to stockpile to be wasted using a jig. In terms of mining productivity, the realization of tin ore production was only 80% from the total production that has been planned by the company on November and Desember. Therefore, an evaluation of factors effecting prodution target is essential to do in order to meet unachieved production target. The research was conducted based on the performance coefficient value of load-haluage and transport equipment productivity in November and December assessed from the productivity of the excavators, loaders, and transforting vehicles in March, which is assumed to have the same condition as that in November adn December. An evaluation was conducted to examine the values of mine, effective usage of working time, and the number of bucket loading. The data is then processed using mechanical eatrhmoving formula.The value of performance coefficientin November and December were 0.9 and 0.8, while the performance coefficient of the company are 1.1 – 1.2. After conducting an evaluation, it is found that the factors that lead to failure in achieving the target of production are the long cycle time of the load-haulage equipment, low efficiency of labor, and low match factors. The efforts that should be taken to increase the realization of target achievement are decreasing the cycle time of the load-haulage, increasing the effective usage of working time, and addin in match factor. The cycle time is shortened to 1.159,5 seconds from the initial cycle time of 1.267,8 seconds. The effective usage of working time is increased to 0.75% from 0.727% and the number of load-haulage is increased to 6 from 4 units. After the changes have been done, the production realization in November and December increasing to 156.21 tons of Sn and 128.59 tons of Sn with performance coefficient value of 1.2, thus the production target of the company is achieved.
Kajian Teknis Alat Gali-Muat dan Alat Angkut Pada Pencapaian Pengupasan Overburden 1.120.000 BCM di Pit Taman Tambang Air Laya Bulan September 2016 PT Bukit Asam (Persero) Tbk: Tecnical Study Trencher-Load Transport and Conveyance at 1,120,000 BCM of Overburden Stripping Achievement in Pit Taman Tambang Air laya September 2016 PT Bukit Asam (Persero) Tbk Frudis, Irwan Edel; Mardiah, Mardiah; Pitulima, Janiar
MINERAL Vol 3 No 1 (2018): MINERAL
Publisher : Program Studi Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v3i1.1578

Abstract

In the layer of overburden stripping activities in Pit Taman attainment production amounted about 82% of the production target set in the amount of 925,187.2 BCM of production target of 1,120,000 BCM. This is due to the high resistance factor affecting work efficiency so that production is produced by means of unloading and transportation have not been able to achieve the production target. The data obtained in the field in the form of a data cycle time tools obtained from the calculation of the time distribution of each trencher-fit to perform the excavation, swing content, swing empty and loading and conveyance maneuvering, loading, road to disposal, dumping and back to front as well as the calculation of effective working hours will do the calculation of the amount of productivity. After calculating the theoretically obtained by 1,656,454.08 BCM of overburden production for excavator-unloading and BCM 1,405,890.9 for conveyance. To get productivity achieve production targets then do the optimization tools work plan is to optimize. Optimizing plan working hours adjustment tools and repair equipment capacity are obtained overburden production amounted to 1,914,890.2 BCM. As for after the technical review of the excavator-unloading and conveyance in stripping overburden at Pit Taman in September 2016 on the calculation of production trencher-load transports that have been implemented should only use 3 units of excavator-unloading is 3 units of PC Komatsu 2000 for with the use of 3 units with improvements and performance optimization tools as well as the factors that influence has reached its production target of 1,670,167.71 BCM and for the use of conveyances using Komatsu HD 785 20 units with a production target of 1,615,712.8 BCM.
Perhitungan Sumberdaya Batu Granit Pada Quarry PT Mandiri Karya Makmur Dengan Metode Cross Section dan Metode Cut And Fill: Calculation of Granit Stone Resource In Quarry PT Mandiri Karya Makmur With Cross Section And Cut And Fill Method Zuhirmanto, Zuhirmanto; Mardiah, Mardiah; Irvani, Irvani
MINERAL Vol 3 No 1 (2018): MINERAL
Publisher : Program Studi Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v3i1.1580

Abstract

Resource calculation studies are an important task in evaluating a mining project. Reserve calculation using the method of cross section and method cut and fill in mining area with extensive Active Block 8 hectares, with elevation limit of mining activity 60 m above sea level. The results of the resource volume of granite using method cross section within the cross section 15, 20 and 25 m is 1.436.967,28 m3, 1.435.887,56 m3 and 1.435.162,056 m3 tonnase 3.736.114,927 tons 3.733.307,656 tons and 3.731.421,345 tons, granite stone resource volume using cut and fill method is 1.437.398,157 m3 with 3.737.235,209 tons tonnage. The results of calculations using the method of cross section with a distance of 15 m smaller cross section 430,877 m3 or 0,03% of the cut and fill method, method of cross section with a distance of 20 m smaller cross section 1.510,597 m3, or 0,11% of the cut and fill method , cross section method with cross-sectional distance 25 m smaller 2.236,101 m3 or 0,16% from method cut and fill. The result of the calculation of the life of mine of PT Mandiri Karya Makmur is based on the calculation of the amount of resources used method cut and fill with a mine life of 31,14 years, cross section method sectional distance of 15 m with a mine life of 31,13 years, cross section method sectional distance of 20 m with a mine life 31,11 years and cross section method of cross- sectional distance of 25 m with mine life of 31,09 years.
Estimasi Kelayakan Penambangan Bijih Timah Blok Kemingking, Desa Kemingking, Kecamatan Sungai Selan PT Mitra Stania Prima: Tin Ore Mining Feasibility Estimation Block Kemingking, Kemingking Village, District Sungai Selan PT Mitra Stania Prima Daryono, Yuli; Mardiah, Mardiah; Pitulima, Janiar
MINERAL Vol 1 No 1 (2016): Mineral
Publisher : Program Studi Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v1i1.1602

Abstract

The mining industry is in need of a good planning so that the planned production targets can beachieved at minimum cost and revenue optimally, and can generate cash flow that will maximizerevenue each year over the life of the mine took place. Tin ore mining economic studies based onthe technical design data, so that the determination of the cost will be considered by the company.Components of the economic study of tin ore mining in terms of costing, revenue from the sale ofproducts, the calculation of cash flow, net present value, internal rate of return, payback period,sensitive analysis. Based on the results of studies on tin ore mine PT Mitra Stania Prima BlockKemingking acquired total reserves of tin ore amounted to 2.801,531 tons, by applying the method ofmining Open Pit Mining. From the economic feasibility calculations assuming the bank rate of 12%was obtained net present value of Rp 11.810.941.184.00, internal rate of return of 19.04%, and apayback period of 4.78 months for 2 years. Based on these results the project of PT Mitra StaniaPrima Block Kemingking feasible to continue.
Kajian Teknis Metode Backfilling Dengan Cara Mekanis Pada Penambangan Timah Alluvial Di TS 1.44 Mapur Kecamatan Riau Silip Kabupaten Bangka Induk PT Timah (Persero) Tbk: Technical Study Backfilling Method By Mechanical Means On Alluvial Tin Mining In TS 1.44 Mapur, Riau Silip Village, Bangka Induk District, PT Timah (Persero) Tbk Ryzzky, Nugrahani Trie; Mardiah, Mardiah; Akuan, Abrianto
MINERAL Vol 1 No 1 (2016): Mineral
Publisher : Program Studi Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v1i1.1606

Abstract

Open pit mining system for the class under TB as TS has reserves of alluvial tin, so that the postmining activities in particular using the backfilling method. Backfilling method that would be examined wasthe backfilling method by mechanial means. The study was conducted in TS 1.44 Mapur PT Timah(Persero) Tbk. Data processing to be performed was the cycle time calculation of heavy equipmentsuch as excavator, dump trucks and bulldozer using to measure time of backfilling, time of stripping,production capacity and match factor. The calculation of machine cost to calculation cost of backfilling.The measurement hole of backfilling and stripping to calculation the volume of backfilling and the volumeof overburden. Calculation time for persentage of effeciency work tools. Based on research obtainedbackfilling activities was a stage open new worked front that stripping, used the excavator loading materialinto a bath of dump truck, dumping into the hole in backfilling and leveled material used bulldozer.Backfilling volume of 171.390 m3 from pegs base and 87.000 m3 from TLR, have a difference of 84.390m3. Backfilling for 41 days with the cost of Rp 675.100.000. Stripping volume of 150.000 m3 to 63.000 m3of excess soil and stripping for 70 days. Production capacity of excavator 49.364,17 m3/month, dumptrucks 39.491,33 m3/month and bulldozer 300.249,09 m3/month. Effeciency of three equipment by0.786%. Match factor results by 72%, means unloading excavator having waiting time while dump truckwork 100%. The production of less than the maximum, so we need the add of 1 unit of dump truck so thatthe tools fit the excavator does not happen the wait time, dump trucks became to 4, it 96% or MF = 80% -100% and productifity would be maximum.
Pengaruh Getaran Tanah Akibat Peledakaan Terhadap Kemantapan Lereng Tambang Air Laya Selatan PT Bukit Asam (Persero) Tbk: Ground Vibration Effect Due to Blasting On Slope Stability of Tambang Air Laya Selatan In PT Bukit Asam (Persero) Tbk Amaliya, Nur; Mardiah, Mardiah; Akuan, Abrianto
MINERAL Vol 1 No 1 (2016): Mineral
Publisher : Program Studi Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v1i1.1612

Abstract

Rock blasting operation generate deformation as a result of the vibration that will destruct rockmass and cause slope failure to endager the human safety. There are so many geological structuressuch as fault, joint and structures that caused the failure slope in South Air Laya Mine Site. Thereforeit is necessary to conduct a research of the influence of blast vibration on slope stability factor aroundthe area. Stability factor value (FK) was obtained from calculation of Geolsope 2007. Test ofPhysical and mechanical parameter valueincluded value of weight content of soil / rock (w) withkn/m3unit, cohesion (C), shear angle(), plasticity index value (IP) as well as the compressivestrenght (UCS). Vibration value was obtained from the measurement of vibration using BlasmateIII.Vibration value used is Peak Acceleration Tranverse (the greatest point taken). Furthermore, physicaland mechanical parameters data of rock and vibration was processed by using Geoslope2007software.Based on research conducted for 50 days by blasting as many as 15 times. Vibration valueused is 3 vibration greatest value, namely 0.102 g; 0.086 g and 0.084 g.The calculation of slope FKvalue using Geoslope2007 software was obtained the comparison between slope FK before and afterblasting. Slope FK value before blasting was 3,744 to 4,058 and slope FK after blasting was 3,422 to2,783. From the overall of slope FK value, slope in blasting area was conluded in safe category (FK >1,25).
Co-Authors . A, Faizal A.A. Ketut Agung Cahyawan W Adi Saputra Agustiar agustiar AHMAD ANSORI Ahmad Fauzan Aji Jumiono Ajima Ritonga, Nurul Akuan, Abrianto Alwi Hafizh , Muhammad Alwi, Besse Marjani Amaliya, Nur Amir, Saiful Amur, Saiful ANANDA, MUHAMMAD DWI Andini, Sumi Fitri Andrian, Dival Arif Anne Effane Apriastuti, Elgatania Dwi Apriliasari, Ajeng Ar-Razy, Fadil Muhammad Arief Budiman Arisandi, Yesi Arrofah, Muhammad Astuti, Lenny Azima, Nur Baharuddin Baharuddin Bulan, Arif Burhan, Muhammad Rahmatul Candra Hakiki Simamora, Fajar Claudya, Ananta Eda Cut Rafyqa Fadhilah Dalimunthe, Saima Sakilah Damawan, Deni Darfin, Sutra Awaliyah Daryono, Yuli Deddy Setiawan Desyandri Desyandri Dewi Mey Lestanti Mukodri Distya Riski Hapsari Dwi Aryanti Nur’utami Dwi Gemina Dzakiyyah, Cyndi Ekariana S Pandia Ellya Roza Epi Epi, Epi ERDAWATI, SRI Eriani, Eva Ernawati Ernawati F, Farida Fadila, Ayu Fadli, Faisal Fanani, Muhammad Zainal Faujiah, Winda Oktavia Febriani, Riska Suci Febriyanti, Shella Fitri Nur Masruriyah, Anis Fitri, Fathia Desiana Fitri, Nurul Fitria, Yanti Fitrilia, Tiana Foulo, Dastin Frudis, Irwan Edel Ghazali Usman, Muhammad Iqbal Halisya, Sintiya Handayani, Futri Hasan Hasan Hasibuan, Semiana Hastuti, Arti Hayun, Zuhana Hikmah Hikmah Husna , Nisa Ul Ida Mulyadi Irmawati Irmawati Irvani, Irvani Isnaini, Radha Rizkita Janiar Pitulima JUMARLIS, MILA Khaibar Putra Aditia, Muhammad Khalidy, Furqan Kurdi, Muqarramah Sulaiman Kurdi, Musyarrafah Sulaiman Leo Saputra Liana, Dina Lisa, Hendro MALIK, KARENINA NURMELITA Maman Suryaman Marisa, Heni Mariza, Mariza Marleni, Lily Marselina, Novita Melina, Hesti mhd. Revi Candra, R Miftuhatis, Ina Mirfan Muhammad Faisal Muhammad Syaifuddin Mukhlisah Mukhlisah Mustafa, Diana Nami Lestari, Nami Napratilora, Martina Neny San Agustina Siregar Nia Pratiwi Ningsih, Nurmaya Nurhasanah, Enung Nurkhamim, Nurkhamim Nurlizawati Nurma, Nurma Nursamsu Nursamsu Oktofia, Erna Paramitha, Dewi Setya Pebriani, Sintiya Halisya Pertiwi, Sri Rejeki Retna Pohan, Fatimah Pradinata Putra, Vebri Prasetyo, Jaka Putra, Rizky Anugrah Putri, Yecha Febrieanitha Qisthi, Amara Rachman, Muhammad Taufik Rahmadani Rahmadani Rahman, Muhammad Afif Rajindra Ramadhan, Nuri Ramona, Pisca Rita Ridayani Ronnie Rivany Rusi Rusmiati Aliyyah Ryzzky, Nugrahani Trie Sabda, Syaifuddin Sabran, Muhammad Sahora Ritonga, Zon Salfen Hasri, Salfen Saputra, Ridwan Saputro, Kristanto Jiwo Sari Putri, R. Marwita Sari, Putri Indah Sembiring, Rinawati Setiaji, Didit Adi Siahaan , Hasnah Siahaan, Hasnah Slamet Rianto Sohiron, Sohiron Solehah, Amalia Suci Febriani, Riska Suhaeti, Suhaeti Sulistia, Fransiska Supriyadi Supriyadi Suryani, Danu Suswitha, Dessy Suyanto Suyanto Syafei, Abdul Syahputra, Andri Syamsuddin Syamsuddin Syamsuddin Syamsuddin Syarifuddin, Hendra Syifaul Qalby, Muhammad Tarigan , Erihot Medi Saputra Taslimurrahman, Taslimurrahman Taslimurrahman Uswatun Hasanah Utama, Hendra Veithzal Rivai Zainal Wahyu Eni Setyohari Wahyu, Sulistiadi Wahyuningsih S, Anita Wardah, Yulia YULIANA, AZMI Yulianti, Ulva Yulsyofriend, Yulsyofriend Zahra, Raudhatuz Zariah, Siti Zuhirmanto, Zuhirmanto Zulfa, Salsabilla