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All Journal Jurnal Pendidikan Teknologi dan Kejuruan CIVED (Journal of Civil Engineering and Vocational Education) Journals Mining Engineering : Bina Tambang Pedagogi: Jurnal Ilmu Pendidikan JIPTEK : Jurnal Ilmiah Pendidikan Teknik dan Kejuruan TELKOMNIKA (Telecommunication Computing Electronics and Control) Tadris: Jurnal keguruan dan Ilmu Tarbiyah SITEKIN: Jurnal Sains, Teknologi dan Industri Jurnal Varidika VANOS Journal of Mechanical Engineering Education Sinkron : Jurnal dan Penelitian Teknik Informatika QALAMUNA: Jurnal Pendidikan, Sosial, dan Agama Jurnal Penelitian Pendidikan IPA (JPPIPA) VOLT : Jurnal Ilmiah Pendidikan Teknik Elektro Jurnal Ilmiah Pendidikan dan Pembelajaran Journal of Education Technology Jurnal EDUTECH Undiksha Journal on Education International Journal of Educational Dynamics (IJEDS) JETL (Journal Of Education, Teaching and Learning) Ensiklopedia of Journal EDUKATIF : JURNAL ILMU PENDIDIKAN Jurnal Teknologi Informasi dan Pendidikan JRTI (Jurnal Riset Tindakan Indonesia) Jurnal Pendidikan dan Konseling bit-Tech Zonasi: Jurnal Sistem Informasi JSR : Jaringan Sistem Informasi Robotik Jurnal Pendidikan Teknologi Informasi dan Vokasional Jurnal Pendidikan dan Kewirausahaan Asatiza: Jurnal Pendidikan At-Tajdid : Jurnal Pendidikan dan Pemikiran Islam Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat Journal of Computer Science, Information Technology and Telecommunication Engineering (JCoSITTE) Jurnal Applied Science in Civil Engineering Jurnal Sosial dan Teknologi Jurnal PTI (Jurnal Pendidikan Teknologi Informasi) Jurnal SAINTIKOM (Jurnal Sains Manajemen Informatika dan Komputer) Rangkiang Mathematics Journal JGK (Jurnal Guru Kita) Jurnal Arsitektur Greenation International Journal of Engineering Science The Indonesian Journal of Computer Science Greenation International Journal of Engineering Science Jurnal Pendidikan MIPA
Abdullah, MT, Dr. Rijal
Universitas Negeri Padang
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Analisis Implementasi Keselamatan dan Kesehatan Kerja di Tambang Batubara Bawah Tanah PT. Cahaya Bumi Perdana dalam Rangka Pembentukan Sistem Manajemen Keselamatan dan Kesehatan Kerja Andri Van Deni; Rijal Abdullah
Journals Mining Engineering : Bina Tambang Vol 3, No 4 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (803.116 KB) | DOI: 10.24036/bt.v3i4.102266

Abstract

Abstract. The mining has to identify the hazards, assess the associated risks and bring the risks to tolerable level on a continuous basis. The number of work accidents in the company are tend to increase, not only that statistic data but also the effectife temperature between 27-29 oC in the tunnel, dangerous mining gases, and lack of use of personal protective equipment by workers, and lack of identification of hazards in some work environments. Based on the problem, this study aims to reveal the application of the company's OSH, statistics on workplace accidents, potential hazards in the work environment and recommend several standard operating procedures. The results of work accident statistics at PT Cahaya Bumi Perdana from 2012-2017 showed that there were fluctuations in the severity and frequency of accidents, with an average FR value is 39.6 and an SR value is 38 days lost. The hazards cannot be completely eliminated, but the hazards of the work environment can be minimized. in this research we are using JSA and JHA methods to identifying and analysing the hazards associated with an activity. JSA and JHA used to identify work hazards in ventilation, supporting systems, lori transportation, and coal replacement. After doing the hazards identification, to controlling it will be given a recommendation. Not only made a hazards identification but also to creating a Standard Operating Procedure for a few jobs. With analyze Both of that requirement, it should be making an eazy ways to forming a management system of occuptional safety and health.Keywords: Safety, Health, Hazards, Mining, Underground
Analisis Rock Factor Dan Pengaruh Powder Factor Terhadap Fragmentasi Pada Batuan Limestone Di Bukit Karang Putih Pt. Semen Padang (Persero) Harifan Prima; Dedi Yulhendra; Rijal Abdullah
Journals Mining Engineering : Bina Tambang Vol 3, No 1 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (616.075 KB) | DOI: 10.24036/bt.v3i1.9177

Abstract

This final project is based on the partially fragmentation which the boulders blasting results more than 80cms that intervene the crusher’s performance. The purpose of this Final Project is to get the exact value of powder factor; in order to attain the value of fragmentation up to 80 with optimally hold on 10%.The methodology problem that used is finding the value of rock factor by using Monte Carlo simulation and calculate the effect of powder factor on fragmentation with linear regression.The result of this final project is attained the value of rock factor 5.01 by using Monte Carlo simulation and the relationship between powder factor with the fragmentation is 72% with equation Y = -102,89X + 50,086. Based on its calculation, to attain the maximum result of fragmentation holding up to 10%, therefore the exact value of powder factor is 0,389.
Evaluasi Waktu Kerja Efektif Alat Gali Muat dalam Rangka Meningkatkan Pendapatan dari Harga Penjualan Batubara pada PT. Britmindo site Bukuan, Kecamatan Palaran, Kota Samarinda, Kalimantan Timur. Wisma Hidayat; Rijal Abdullah; Murad Murad
Journals Mining Engineering : Bina Tambang Vol 3, No 1 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (534.593 KB) | DOI: 10.24036/bt.v3i1.9072

Abstract

The things that should be success parameter of mining company is the amount of its production. Loading and hauling equipments performance will determine production planning. Unproductive working hours directly also be an affect from unappropiate work system. As the draft of this research, the author examine the data of its equipments cycle time so that it can be obtained the details working hours of equipments such as effective working hours, and working hours obstacles. The methodology of this research used quantitative analysis approachment which the biggest point should be done to reach the goals of this research is to examine the data and make a detail of working hours such as the number of annual equipments and then evaluated it, thus it would be obtained the production. The results showed the average of equipments was working about 3.55 hours/day with production getting (25,417.997 ton). Then the autors do an evaluation, if working hours is increased to 5 hours/day, then it also will increase more than (35,819.3467 ton) and additional revenue from (Rp. 12,708,998,500) be (Rp. 17,909,673,800).
Kajian Teknis Produktivitas Dan Efisiensi Kerja Belt Conveyor Dalam Pengiriman Limestone & Silicastone Ke Storage Indarung Pada Pt. Semen Padang Sumatera Barat Fadhilla Elka Putri; Rijal Abdullah
Journals Mining Engineering : Bina Tambang Vol 3, No 3 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (693.693 KB) | DOI: 10.24036/bt.v3i3.101408

Abstract

PT. Semen Padang has a 31-lane conveyor system for limestone transportation and 6 lanes for transport of silicastone delivered from 4 units of limestone crusher, 1 unit of mosher silica to 5 industrial plants. Belt conveyor at PT. Semen Padang has different sizes so that the capacity of each belt for the delivery of raw materials will differ according to the delivery path. Therefore, production capacity of conveyor belt will depend on its minimum production capacity. PT. Semen Padang in the long-term 5 years plan to increase production target of 12,300.00 tons in 2021. Thus, it is necessary a technical study and evaluation so that belt conveyor can be used. In this research, combined between theory with field data, so get problem solving approach. And the results of data processing will be analyzed for subsequent to be generated a recommendation.  Based on the results of research conducted can be summed up some of the following. First, the minimum production capacity of conveyor belt in limestone delivery is 1,744,954 ton / hour and silicastone 1,484,922 ton / hour. Second, the design of a limestone delivery line is a new belt carry connecting A1J12C-6A1J07 and A1J12B-A4J13. Third, several anticipations in increasing production targets include: adding mosher silica to the pit limit area, crushing conveying need for maintenance before operation, decrease material size before entering the hopper.  Keywords:  Productivity, Work Efficiency, Belt Conveyor, Limestone, Silicastone
IDENTIFIKASI BAHAYA, PENILAIAN RESIKO, DAN PENGENDALIAN RESIKO PADA AKTIVITAS TAMBANG BATUBARA DI PT. KIM KABUPATEN MUARO BUNGO, PROVINSI JAMBI Miftahul Jannah; Rijal Abdullah; Murad Murad
Journals Mining Engineering : Bina Tambang Vol 2, No 1 (2015): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (380.688 KB) | DOI: 10.24036/bt.v2i1.5287

Abstract

Based on the data obtained from the company, the data accidents that occurred between the years 2012-2014 there were 222 cases of accidents, as well as activities that are harmful to workers at risk of injury, lost work days, and the cost of repair tools. The causes of such unsafe acts and unsafe conditions of the workers. The purpose of this study were: 1) Revealing the dangers that occur in coal mining activities. 2) Uncover the risk of hazards that occur in the coal mining activities. 3) Disclose the value of the likelihood and severity of hazards that occur in the coal mining activities start from land clearing activities until the loading of coal in the stockpile.This type of research is descriptive with quantitative approach, in which data is collected or obtained from direct observation in the field and interviews with leaders and staff as well as employees of the company who are competent in connection with the object of research. The data is taken from the data mining activities, the risk of hazards that occur in the coal mining activities.Results of the study revealed that the risk of hazards that occur in the coal mining activities at PT. Kuansing core affluent who are at a high level going on the road hauling.
Analisis Kinerja Manajemen Keselamatan dan Kesehatan Kerja untuk Mengetahui Penyebab Meningkatnya Kecelakaan Property Damage di PT. Cakra Bumi Pertiwi Site Bengkulu Utara Provinsi Bengkulu Renaldo Juliandi; Rijal Abdullah; Murad Murad
Journals Mining Engineering : Bina Tambang Vol 3, No 1 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (183.814 KB) | DOI: 10.24036/bt.v3i1.9194

Abstract

From the research can be seen that the incidence of property damageaccidents increased. This is caused of unsafe conditions and unsafe work acts,inconsistent in supervising the K3 management system, lack of knowledge, employeeawareness and concern about K3. The absence of sanctions against employees whoviolate K3. The purpose of this study is to reveal whether PT. CBP has implementedK3 principles in accordance with the principles of K3 mine, reveals whethersupervisors and miners have implemented K3 principles, disclosing the extent ofoccupational risk, disclosing the causes of accidents, and disclosing the percentage ofunsafe and unsafe events.In carrying out this research, combined theory and direct interview withfield data, so that both of them got problem solving approach.Based on the results of the research conducted can be concluded thefollowing points. First, the factors that cause property damage accidents includehuman factors, equipment factors and environmental factors. Second, there are stillmany unsafe and unsafe practices. Third, the percentage of accidents for unsafe actsis 60.71% and for unsafe conditions is 39.29%. And the cause of the accidentproperty damage in PT. Cakra Bumi Pertiwi is a matter of implementation of K3policy in management, which subindicator is supporting activity, capabilityguarantee, and ability guarantee.
Evaluasi Coal Handling Facility (CHF) 2 Untuk Memenuhi Target Penerimaan Produksi Batubara Bulan Maret 2018 Ke Stockpile 2 Di PT. Bukit Asam, Tbk. Tanjung Enim, Sumatera Selatan Andre Agusli; Rijal Abdullah
Journals Mining Engineering : Bina Tambang Vol 3, No 3 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (461.794 KB) | DOI: 10.24036/bt.v3i3.101399

Abstract

Coal handling activities at Muara Tiga Besar has done with two methods, coal from BWE’s bait will transport by BWE system to temporary stockpile MTB before it toward to reclaim feeder 1 and coal from mining front will transport by dump truck to reclaim feeder 2. Coal from MTB will transport to stockpile 2 by CHF MTB. Coal target production of stockpile 2 on March 2018 are 500.000 ton. Incompleteness of coal production on March 2018 caused by some factors, there are high of hitch hour at CHF’s path on March 2018, low capacity production of coal conveyor-22, and unoptimal setting of reclaim feeder speed. Research Methods used in this thesis is a quantitative research method. Efforts that can be made to achieve production targets in March are like increasing the daily work efficiency of reclaim feeder 1 which was originally 83.33% to be 92.85% so that the total rate of coal receipts that could be received by the coal handling facility 2 experienced an increase from 1,429.4 tons / hour to be 1,606.5 tons / hour. In addition, efforts that can be done are increasing the productivity of bulldozers, monitoring the mining front to avoid transporting rock packs, and synchronizing speed reclaim feeders.Keywords:  Coal handling facility, Coal Mining, Reclaim Feeder, Production, Work Efficiency.
Persepsi Karyawan PT. Guguk Tinggi Coal Sawahlunto Terhadap Penerapan Norma Keselamatan dan Kesehatan Kerja Andes Andes; Rijal Abdullah; Murad Murad
Journals Mining Engineering : Bina Tambang Vol 3, No 1 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (506.908 KB) | DOI: 10.24036/bt.v3i1.9165

Abstract

PT. Guguk Tinggi Coal, is a coal mining company located in salak village, Talawi, Sawahlunto city, West Sumatra province. In executing the mining accidents that often occur is influenced by the perception of employee knowledge about K3 norms and the high level of accident risk that occurs. The purpose of this study to reveals the perception of employes PT. Guguk Tinggi Coal About the safety norm, Reveals the risk persentage of work accident occurring at PT. Guguk Tinggi Coal.Data collected or obtained directly from the respondents with direct observation in the field and direct interviews with employees that competent in companies and have relation with the object of research. The data taken are the conditions in the environment (mining area to the stock of the workplace files) as well as potential hazards that may occur, the employee's knowledge of safety norms and work programs of K3 management, workers' responses to the programs undertaken by K3 management.The results obtained are the employee's knowledge about K3 and how to evaluate the work activities are still low with the results obtained by the questionnaire test with a value of 3.35 for the implementation and 3.21 for the evaluation of this category is still quite good, there are still factors of work accident from unsafe conditions and unsafe actions, PT.Guguk Tinggi Coal should form a special management for K3 and provide training and guidance on the importance of occupational safety and health, management is also required to always evaluate the activities of the workers in intensive mining activities.
Optimalisasi Pencampuran Batubara Untuk Memenuhi Kriteria Permintaan Konsumen Dengan Menggunakan Metode Simplek dan Evaluasi Biaya Pada Proses Blending Batubara Di Lokasi CV. Tahiti Coal, Talawi, Sawahlunto, Sumatera Barat Sonia Lestari; Rijal Abdullah
Journals Mining Engineering : Bina Tambang Vol 3, No 3 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (703.66 KB) | DOI: 10.24036/bt.v3i3.101426

Abstract

The quality of coal is influenced by the geological condition of a mining site, including high quality (higt quality), medium quality, and low quality. The amount of coal with calorific value ranges from 7600 kcal / kg to 7800 kcal / kg that has not been marketed accumulate in stockpile CV. Tahiti Coal. The high quality of coal in the CV. Tahiti Coal then not in accordance with the contract specifications with consumers. One of them with PT PLN (PERSERO) Sector Ombilin which require coal calorie 6300 kkal / kg. Therefore it is necessary for action to utilize high quality coal so as not to accumulate in CV stockpile. Tahiti Coal by mixing high quality coal with low quality coal.The simplex method is one of the mathematical models that can be used in solving the problem of allocation of finite sources optimally (maximum profit or minimum cost) of three or more variables.The results showed that the increase of calorific value from 6,283,08 Cal / gr, Ash 13,91%, sulfur 0,83% company result compared to comparison of method of calorific value value 6,328 Cal / gr, Ash 12,06%, sulfur 0.61% can be profitable for companies with a predetermined calorie value of 6,300 Cal / gr, Ash 13%, 0.8% sulfur. With the calculation of simplex method of the company can ease of work in the field. And calculation of coal blending cost for 1 month Rp. Total biaya blending Rp. 571.202.000Keywords: Blending, Coal, Calories, Simplek Method, Blending Cost
FAKTOR-FAKTOR YANG MEMPENGARUHI PERILAKU KARYAWAN DALAM PENERAPAN KESELAMATAN DAN KESEHATAN KERJA (K3) PADA AREA PENAMBANGAN TAMBANG BAWAH TANAH PT. BUKIT ASAM (PERSERO) TBK, UNIT PERTAMBANGAN OMBILIN, SAWAHLUNTO, SUMATERA BARAT Ricci Rahman; Rijal Abdullah; Yunasril Yunasril
Journals Mining Engineering : Bina Tambang Vol 2, No 1 (2015): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (152.961 KB) | DOI: 10.24036/bt.v2i1.5279

Abstract

The purpose of the health and safety program K3 in the company is to keep employees  good in work and anticipate an accident. Unsafe action and unsafe condition are the direct caused of the accident happen. It can anticipate by improve the  SMK3 management sistem.  Knowledge, attitude, and the act of employees are the factors that influence  the management system woking. Well, this research  purpose to know the K3 Management Sistem working or not.This research is could be classified as to the kind of research of correlational. The population on this research is all employees of which are at work unit and means of mining engineering PT.Bukit Asam (Persero ) Tbk, UPO that total about 22. Data collection by using a questionnaire that has been tested validity and reliabilitasnya. Furthermore, the data mixed with use a computer program spss 15.0. version.The results from this research is there are significant relationship between knowledge with the application of the K3,  between the attitude with the application of the K3, between the act of an employee with the application of the K3. It Can be concluded that from  three factors are having a  significant relation toward K3  applicate on PT .Bukit Asam (Persero) Tbk, UPO, Sawahlunto, of West Sumatra. In this case, the company should be enrich the employees knowledge about K3, make a lot of guidelines about the health and safety of employment in the area by mining, and  the socialization regularly and sustainable covering all aspects.
Co-Authors ., Mardewifa ., Mudhofar Adriani Afif Rahman Riyanda Agariadne Dwinggo Samala Agung Setiawan Aini, Nur Rohmatul Alif Vito Palox Alvin Faiz Nuthgi Padli Alvin, Muhamad Alyya Riska Ramadina Alyya Riska Ramadina Ambiyar, Ambiyar Aminuddin, Fattachul Huda Andes Andes Andhika Herayono Andre Agusli Andri Dermawan Andri Van Deni Annisa Helmina Annisa Tishana Ansosry Ansosry Anugrah, Septriyan Anwar, Badrul Arief J. Pratama Arif Setiawan Arifin, Ari Syaiful Rahman Arnellis Asri, Putri Fauziahtul Asrul Huda Asrul Huda Astri Indah Juwita Asyahri Hadi Nasyuha Aulya Chasovy Bambang Heriyadi Budi Syahri Bulkia Rahim Buyung Solihin Hasugian Christina Mentari Perdana Decky Antony Kifta Dedi Yulhendra Dedy Irfan Delista fadillah Indah, Febby Deni Syahputra Desmawati . Dharma, Adhadian Bhakti Dheo Rimbano Diah Anggraini Austin Dimas Aprian Dio Alvendri Dol Frialdo Dus Hendra Dwi Sudarno Putra Eka Oktaviani Melianti Eka Oktaviani Melianti Enjang Suhaedin Fadhilah Fadhilah Fadhilah Fadhilah Fadhilah Fadhilla Elka Putri Fadhli Ranuharja Fadia kalma Lailani Fadly Nendra Fadly Nendra Fahmi Rizal Fani Keprila Prima Fatihaturahmi Fatihaturahmi Febri Ananda Febri Ananda Febri Silvia Febrianda Edriani Febrianto Febrianto Febrizal Alfarasy Fidli Suhiarja S Firdaus, Novemli Fitra Rifwan Fitri Rahmadani, Ade Fransisca, Monica Ganda Yoga Swara Giatman Giatman, M Govina Oktaphika Gusmariza Putri, Dinda Hadid Putri B. Zurna Hafidz Haidi Hafiz Elmi Hamdani Hamdani Hanapi Hasan Harifan Prima Hariyadi Hariyadi Harleni, Harleni Hartika Srinita Hasan Maksum Henny Yustisia Herayono, Andhika Huda, Asrul Hutagalung, Juniar Ika Parma Dewi Ilham Harma Putra Indra, Donal Indrati kusumaningrum Indrati Kusumaningrum Indrati Kusumaningrum Iwa Aditia Jalal, Rifka Jalius Jama Jalius, Nizwardi Jalinus Jamilah, Yumn Jiorgi, Thomas Joni Pradinata Jufri, Windry Novalia junaidah Arsyad K. Krismadinata Khurry Mu'amalla Krismadinata Krismadinata, Krismadinata Laksono Trisnantoro Lika Jafni Hirda Lisa Rizki Fauziah Luthfiandy Ramadhana M. Roza Mardizal, Jonni Melinda, Annisa Prita Miftahul Jannah Mita Dwi Putri Mubai, Akrimullah Mudhofar . Mudjiran Mudjiran Muhammad Adri Muhammad Rinov Cuhanazriansyah Murad Murad Muslim Muslim Musraeka, Valda Mustakim, Waradzi Nadra Mutiara Sari Namiera, Shalza Putri Nanda, Iffarial Nazmi Septiani Neno Octavia Netriwati Nidal Zuwida Nizwardi Jalinus Nizwardi Jalinus Nizwardi Julinus Novi Hendri Adi Novrita, Sri Zulfia Nur Arifah Nur Rohmatul Aini Nuzulul Joreateta Bangun Oktaviani Oktaviani Oriza, Wike Ovel Geta Nafeli Padli, Alvin Faiz Nuthgi Patriotika, Fithriyah Permata Saputri, Renny Prasetya Yoanda, Bima Prima Zola Putri, Tansa Trisna Astono Rahmat, Rurnardi Rahmatul Husna Arsyah Rahmatullah, Ramadhani Rama Dhonal Rama, Alzet Ratumas Ayu Atika Putri Rayendra Rayendra Refdinal, Refdinal Refdinal, Refdinal Remon Lapisa Renaldo Juliandi Reno Afsus Salam Revelita, Dayu Revian Body Rezki Hidayat Rezki, Indra Kurniawan Ricci Rahman Ridwan Ridwan Ridwan Ridwan Ridwan Ridwan Ridwan Ridwan Ridwan Ridwan, Ridwan Rifelino Rifelino Rika Almaida Simanjuntak Rini Widyastuti Riri Ferdian Risfendra, Risfendra Risma Apdeni rizki adam Rizki Hardian Sakti Rolan Kristiawan Romi Wijaya Ronal Watrianthos Rosi Yulianti Rosmidah Hasibuan Rycomatsu Rycomatsu Sefriani, Rini Septiadi Budiyanto Silalahi, M.Pd, Drs. Juniman Silvia, Febri Sonia Lestari Sovi Mailadiniya Syaflan Sandi Harta Putra Syafrijon Syahril Syahril Syahril Syahril Syaiful Islami Syukri Rahmad Tamrin Kasim Tengku Fauzan Tomy Efraim Situmorang Toto Sugiarto Veggy Aprilia simersis Vitriyadi Wagino Wakhinuddin Simatupang Wakhinuddin Wakhinuddin Waradzi Mustakim Waskito Weni Nelmira Wike Oriza Winda Lestari Siregar Wisma Hidayat Wiwik Gusnita Yandri Kurniawan Yohanni Syahra Yose Indarta Yoszi Mingsi Anaperta Yualitas Gusmareta Yudha Aditya Fiandra Yudhi Diputra Yulianisa Yulianisa Yulianti, Rosi Yuliawati Yunus Yuliawati Yunus Yumn Jamilah Yunasril Yunasril Yuni Yuni Meinastria Zulfi Azhar Zulwisli .