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All Journal International Journal of Applied Power Engineering (IJAPE) PROSIDING SEMINAR NASIONAL Tadulako Journal Sport Sciences And Physical Education Jurnal Rekayasa Jurnal Rekayasa Sipil dan Desain DINAMIKA Jurnal Ilmiah Teknik Mesin REFLEKSI EDUKATIKA Terampil : Jurnal Pendidikan dan Pembelajaran Dasar Teras Jurnal UNM Geographic Journal Jurnal Environmental Science Civil and Environmental Science Journal (CIVENSE) Islamic Management: Jurnal Manajemen Pendidikan Islam IKRA-ITH ABDIMAS Holistika : Jurnal Ilmiah PGSD Jurnal Teknodik Edukids: Jurnal Pertumbuhan, Perkembangan, dan Pendidikan Anak Usia Dini JURNAL PENDIDIKAN, SAINS DAN TEKNOLOGI Al'adzkiya International of Education and Sosial (AIoES) Journal juremi: jurnal riset ekonomi Jurnal Ranah Publik Indonesia Kontemporer (Rapik) Pedagogy : Jurnal Pendidikan Matematika PENANOMICS: INTERNATIONAL JOURNAL OF ECONOMICS Seminar Nasional Insinyur Profesional (SNIP) Mestaka: Jurnal Pengabdian Kepada Masyarakat COREAI: Jurnal Kecerdasan Buatan, Komputasi dan Teknologi Informasi Jurnal Kabar Masyarakat JPNM : Jurnal Pustaka Nusantara Multidisiplin AN-NAS: Jurnal Pengabdian Masyarakat Jurnal Papeda: Jurnal Publikasi Pendidikan Dasar Jurnal Pendidikan dan Kebudayaan Jurnal Pendidikan dan Kebudayaan Rekayasa : Jurnal Ilmiah Fakultas Teknik Universitas Lampung Nemui Nyimah
Iswan Iswan
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Pengaruh Kuat Tekan dan Kuat Geser pada Sampel Dry Side of Optimum (Optimum Kering) dan Wet Side of Optimum (Optimum Basah) Tanah Organik Setiawan, Ade; Iswan, Iswan; Setyanto, Setyanto
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 3 No. 2 (2015): Edisi Juni 2015
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v3i2.456

Abstract

Organic soils causing many problems for the construction to be built on it, is generally caused bythe physical properties of organic soils that have a very high water content and low carryingcapacity, so that organic soils have less favorable properties for the construction of civil buildings.In this case, there should be a study of compressive strength and shear strength.This research wasconducted in the laboratory by making a sample of the results of a standard compaction, then thesample is done in Optimum condition Dry side of optimum and Wet side of optimum. On the DrySide Of Optimum process, sample was given a reduction of 10% of the optimum water content,while the Wet Side Of Optimum given the addition of 10% of the optimum water content, then thesample is done soaking for 4 days after compaction testing standards.The test results ofcompressive strength and shear strength shows a sample of soil behavior in an Optimumconditions better than the sample in Dry Side Of Optimum conditions and Wet Side Of Optimum.This is due to the pores of the soil Optimum conditions experienced stability and development ofthe soil is very minimum to occurs. Compressive strength and shear strength test is to measurehow strong soil receiving compressive strength and shear strength given to the soil separated fromthe grains.Keywords: Organic Soil, Dry Side Of Optimum, Wet Side Of Optimum, Optimum, CompressiveStrength and Shear Strength
Hubungan Batas Cair dan Plastisitas Indeks Tanah Lempung yang Distabilisasi dengan ISS 2500Terhadap Nilai Kohesi pada Uji Geser Langsung dan Uji Tekan Bebas Manik, Markus; Iswan, Iswan; Jafri, Muhammad
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 3 No. 2 (2015): Edisi Juni 2015
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v3i2.459

Abstract

Along with the times, human need a better means and facilities. This make human have no choicebut to build a building or civil structure upon improper area, for example, build it on clay area.The clay is a cohesive soil which often undergoing a swelling-shrinking event in its subgrade. So,it needed to to carried out the stabilization, one of which is using ISS 2500, and research of liquidlimit and plasticity index to know about their relationship with its cohesion in-depth study.Thesample was taken from Margakaya village and Palputih village, District of Jati Agung, SouthLampung and Blimbing Sari village, District of Jabung, East Lampung. The soil tested at originalcondition and mixed by ISS2500 with three variation of mixture, that is at 0,6 ml, 0,9 ml, and 1,2ml. Mixing is conducted based on optimum moisture content of each kind of soil. Mechanicaltesting which is unconfined compressive test and direct shear test, using three sample for everysoil and every mixture variation.Test result show that the more volume of solution added into soil1, soil 2 and soil 3, then it will increase value of soil cohesion (c), maximum stress (qu). Mixing ofthe ISS 2500 resulted liquid limit (LL) of clay be between 42% - 47% .Keywords: cohesion, direct shear test, liquid limit, plasticity index, unconfined compressive test
Hubungan Batas Cair dan Plastisitas Indeks Tanah Lempung yang Disubstitusi Pasir Terhadap Nilai Kohesi Tanah pada Uji Direct Shear Ramadhani, Taufik; Iswan, Iswan; Jafri, Muhammad
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 3 No. 2 (2015): Edisi Juni 2015
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v3i2.460

Abstract

The Clay has a low shear force properties, large density, small permeability coefficient and has alow bearing capacity. To increase the bearing capacity of the clay can be used a mixture of sand.In this study, the test is done by using the Direct Shear test, which will be a reference in relation ofliquid limit and plasticity index to the value of cohesion (c) of each soil sample that has beensubstituted with sand.Soil samples used an original soil samples and disturbed soil of clay that comes from threelocations: the area Margakaya Jati Agung South Lampung, Palputih Karang Anyar SouthLampung , and Belimbing Sari Jabung East Lampung. Clay will be mixed with sand No.40 sieve(0.43 mm) in accordance with the required percentage of the variation in sand content of 0%, 5%,10%, and 15%.Based on AASHTO classification system, the three of soil include to the class of ordinary clay soilup to bad as subgrade material. The addition of sand mixture into three types of clay causingdecreased shear strength. The greater the addition of sand content, then the value of cohesion (c),liquid limit and plasticity index of the soil will decrease and shear angle will increase.Keywords : shear strength, Atterberg limits, Clay, Sand .
Studi Kekuatan Pasangan Batu Bata Pasca Pembakaran Menggunakan Bahan Additive Zeolit Fernanda, Aldy; Iswan, Iswan; Setyanto, Setyanto
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 3 No. 3 (2015): Edisi September 2015
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v3i3.470

Abstract

In this research the reseacher used the worst material of soil with additive materials named theash of bagasse in purpose to utilize the waste and to increase the strength of the bricks so that itcan produce cheap bricks with good quality that can be an alternative for bricks industries.Soil samples were tested in this study is derived from the silt soil region Nyunyai road,Kec.Rajabasa. Variations in the levels of the mixture used is 6%, 8%, 10%, and 12% and dryingfor 7 days, with burning treatment and without burning treatment. Based on the results of physicalexamination native land, USCS classify soil samples as fine-grained soil and belong to the CLgroup.The results showed that the brick-making post-combustion using zeolite mixture meets theIndonesian National Standard (SNI) bricks for building materials. In general, the addition ofzeolite material in the soil reduces the value of the density of the soil mixture. For the compressivestrength of bricks without combustion and combustion processes are best shown in the addition ofa mixture of 10%-12%.Keywords: Bricks, silt soil, zeolite, compressive strength
Pengaruh Waktu Perendaman Terhadap Uji Kuat Tekan Paving Block Menggunakan Campuran Tanah dan Kapur dengan Alat Pemadat Modifikasi ANDANDANINGRUM, DELLA; Iswan, Iswan; Setyanto, Setyanto
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 4 No. 4 (2016): Edisi Desember 2016
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v4i4.495

Abstract

Paving block is a composition ingredient construction made from mixture of portland cement or a kind of adhesive hydrolysis, water, and aggregates with or without other ingredients. Concrete bricks can colored as original color or given substance color on composition and used for page both inside nor outside construction. In this study the process of manufacture of paving blocks will use a mix of soil and chalk. Moreover, soaking of the paving blocks that are expected to increase the strength of paving blocks is according to SNI 03-0691-1996. Soil samples tested were from Kota Baru, South Lampung. Composition blend of soil and chalk with variation time to soak is 7 days, 14 days, 21 days, and 28 days, as well as to the treatment of pre-combustion and post-combustion of the sample of paving blocks. Based on the results of physical testing the original soil, USCS classify soil samples as fine-grained soil and belong to the group ML. Results from this study is the manufacture of paving blocks using silt soil and chalk soil material that does not meet the specifications of SNI 03-0691-1996. This is because the weakness on modification compactor which are use when make a sampel. For the compressive strength of paving blocks pre-combustion and post-combustion are best shown in soaking time of 28 days. The compressive strength that generated as a whole still does not meet the specifications of the paving block SK SNI 03-0691-1996 that is a minimum compressive strength at 85 kg/cm2. But value of water absorption meets the specification 03-0691-1996 which is 3%-10%.Keyword : Paving block, slit soil, compressive strength, soil burning.
Analisa Stabilitas Lereng dan Penanggulangan Kelongsoran Lereng Pada Ruas Jalan Batas Kota Liwa-Simpang Gunung Kemala, Taman Nasional Bukit Barisan Selatan, Lampung Barat arbenta, hermawan; setyanto, setyanto; iswan, iswan
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 4 No. 4 (2016): Edisi Desember 2016
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v4i4.549

Abstract

Landslide are one of the natural disasters that often occur during the rainy season. As in the area of Bukit Barisan Selatan National Park, Lampung Barat, which is a road that is always passed many vehicles. This happens because of an increase in pore water pressure on the slope, which then resulted in a decrease in shear strength (c) and friction angle (φ). Required slope stability analysis and prevention of sliding slopes experiencing.One of the slope stability analysis method used is Fellenius with countermeasures using retaining wall. Fellenius slope stability analysis method (1927) considers the forces that work on either side of any resultant slices have a zero in the direction perpendicular field of avalanche. Fellenius method provides a safe factor is relatively lower than a matter of a more thorough way.From the analysis of slope stability, slope expressed in critical condition. Countermeasures sliding slope using stone retaining wall plug and using gabion. Dimensions and gabion retaining wall that has been planned can be applied in the field so that avalanches do not occur again. Keywords: slope stability, safety factor, fellenius, retaining wall, gabion.
Pengaruh Variasi Waktu Perendaman Terhadap Daya Dukung Tanah Lempung Dan Lanau Yang Distabilisasi Menggunakan Semen Farabi, Alward; Setyanto, Setyanto; Iswan, Iswan
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 5 No. 1 (2017): Edisi Maret 2017
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v5i1.586

Abstract

Soil is the material that serves as a support for the construction base. Each region has different soil characteristics in other areas, there has a carrying capacity of good to bad or poor. Clay and silt soil has a bearing capacity and low soil properties. To overcome this, the need to improve the soil natures with the stabilization method. Stabilization is to improve the physical and mechanical properties of the soil so that it meets certain technical requirements. One way is with a cement stabilization. In this study, the cement used is a cement-type portland cement. This study aimed to compare the value of CBR clay and silt before and after stabilized by the addition of cement and given soaking treatment. Soil used is a type of clay taken from the village of Rawa Sragi, District Jabung, East Lampung district and silt types from  Yosomulyo Village, East Metro District, Metro City. In CBR soaking test with mixture of 9% cement with modified proctor compaction and cured for 28 days, CBR values decrease to 28,7% for clay that soaked for 28 days, while the CBR value for silt soil with the same condition descease to 37,8%. The soaking treatment is proven to decrease the value of CBR significantly compared with the optimum condition of both soil.
Studi Analisis Penurunan Tanah Lempung Lunak Dan Lempung Organik Menggunakan Pemodelan Box Dan Matras Beton Bendrat Tanpa Tiang Putra, Riansyah; Iswan, Iswan; Setyanto, Setyanto
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 5 No. 2 (2017): Edisi Juni 2017
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v5i2.627

Abstract

AbstractSoil clay have role that very important for something building civil especially in building and projects in whole indonesia. Development construction in soil clay will experience some obstacles as existence settlement and if soil given loading then will occurrence settlement that significant, will reduced volume soil so water pore exit and cause pressure water pore up so experience settlement on consolidation. Then from that need do research settlement that use box and mattress concrete bendrat without pole as tool land subsidence. For knowing how much big function from tool decline this could proven in laboratory with test soil clay in the box and burdened by concrete mattress bendrat and given loading, then do testing settlement or that called consolidation. Giving loading above surface permeability clay aim for look coefficient consolidation (Cv) compression index (Cc) changes in volume (Av) and the coefficient congestion volume (Mv). Result loading settlement clay that use modeling box and mattress bendrat without pole, soft clay soil experience decline 51% while organic clay soil experience decline 56%. Because of organic clay soil have value water content that more high. Research in prove that organic clay soil more fast experience decline compared with soft clay soil when given loading certain.Keywords : clay soil, concrete mattress box test and bendrat without poles, soil consolidationAbstrakTanah lempung memiliki peranan yang sangat penting bagi suatu bangunan sipil khususnya di gedung dan proyek-proyek di seluruh indonesia. Pembangunan kontruksi ditanah lempung akan mengalami beberapa kendala seperti adanya penurunan tanah dan apabila tanah diberi pembebanan maka akan terjadinya penurunan tanah yang signifikan, akan berkurangnya volume tanah sehingga air pori keluar dan menyebabkan tekanan air pori naik sehingga mengalami penurunan tanah secara konsolidasi. Maka dari itu perlu dilakukan penelitian penurunan tanah yang menggunakan box dan matrasbeton bendrat tanpa tiang sebagai alat penurunan tanahnya. Untuk mengetahui seberapa besar fungsi dari alat penurunan ini dapat dibuktikan dilaboratorium dengan menguji tanah lempung di dalam box dan di bebani oleh matras beton bendrat dan diberi pembebanan, kemudian dilakukan pengujian penurunan tanah atau yang disebut konsolidasi. Pemberian pembebanan diatas permukaan tanah lempung bertujuan untuk melihat koefesien konsolidasi (Cv) indeks pemampatannya (Cc) perubahan volume (Av) dan koefesien kemampatan volume (Mv).Hasil pengujian penurunan tanah lempung yang menggunakan pemodelan box dan matras beton bendrat tanpa tiang, tanah lempung lunak mengalami penurunan 51 % sedangkan tanah lempung organik mengalami penurunan 56 %. dikarenakan tanah lempung organik memiliki nilai kadar air yang lebih tinggi. Penelitian ini membuktikan bahwa tanah lempung organik lebih cepat mengalami penurunan dibandingkan dengan tanah lempung lunak ketika diberi pembebanan tertentu. Kata kunci : Tanah Lempung, Box Uji Dan Matras Beton Bendrat Tanpa Tiang, Penurunan Tanah
Studi Analisis Penurunan Tanah Lempung Lunak dan Tanah Lempung Organik Menggunakan Pemodelan Matras Beton Bambu Nawawi, Nawawi; Afriani, Lusmeilia; Iswan, Iswan
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 5 No. 3 (2017): Edisi September 2017
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v5i3.688

Abstract

The strength of infrastructure buildings is influenced by the type of soil underneath. One type of land that is widely found in the land in the province of Lampung is fine-grained soil. The fine grained soil is meant soft clay and organic clay. Construction of the above clay will experience significant land subsidence constraints when given the loading. The load that causes the pore water pressure increases so that the pore water out and soil decreases consolidatively. Therefore, it is necessary to study soil degradation using box test and bamboo concrete mats as a means of land degradation. The result of clay decline testing using boks modeling and bamboo concrete mat, soft clay experience faster rate of process of decline (Cv) than organic clay. The magnitude of soft clay (Cc) decline is less than that of organic clay. Soft clay volumes are also changing volume (Mv) faster than organic clay. Coeficient of compression(av) of soft clay is also faster than organic clay. The total decline in total soil over a 20 year period on soft clay is smaller than that of organic clay. Keywords : Clay, Test Box, Bamboo Concrete Mattress, Soil Consolidation
Pengaruh Waktu Perendaman Terhadap Uji Kuat Tekan Paving Block Dengan Campuran Tanah, Pasir Dan Semen Menggunakan Alat Pemadat Modifikasi Agusni, Restu; Setyanto, Setyanto; Iswan, Iswan
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 5 No. 2 (2017): Edisi Juni 2017
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v5i2.703

Abstract

Paving blocks are compositions of building material constructed from a mixture of Portland cement or other similar hydrolysis, water, and aggregate with or without other additives which do not reduce the quality of the material. Paving blocks in the field are made of cement, sand, aggregate, and water by mixing all the ingredients and form the paving blocks. In this research, the paving blocks are made of the mixture of soil, sand, and cement. In the process, the paving blocks are compacted by a modified penetration tool in order to improve the paving blocks quality in accordance with SNI-03-0691-1996.The soil samples used in this research were from Kota Baru, Lampung Selatan. The amount of mixture used for making the paving block was 75% of soil, 10% of sand and 15% of cement. The variations of curing time were 7 days, 14 days, 21 days and 28 days as well as with pre and post burning treatment on the paving block samples.The results of the compressive strength test to the paving blocks which are made of soil, sand, and cement showed that the cement and sand do not meet the standard of SNI 03-0691-1996 for the paving block classification because the highest compressive strength value is obtained by the paving blocks with pre and post burning treatment on the variation mixture of 75% soil, 10% sand, and 15% cement with the value 7,65 MPa and 7,25 MPa. The result of water absorption value which was between 16,6% - 25,4% do not meet the specification in SNI-03-0691-1996.Keywords: Paving block, silt, compressive strength, water absorption
Co-Authors A., Putra Andrean Abdil Hafizh Arrofiq Achmad Satria Nursar Ade Setiawan Ade Setiawan Afriami, Lusmeilia Afrie, Fransiskus Agusni, Restu Ahmad Zakaria Ahmad Zakaria Aji, Badruzzaman Albertus Willy Pratama Aldani, Muhammad Aldy Fernanda Alward Farabi Amal Khairan Andandaningrum, Della Andius Dasa Putra Andius Dasa Putra Anggi, Yulisna Anggraini, Hany Octavia Aprizal, Dani arbenta, hermawan ARDIANSYAH ARDIANSYAH Ardianto, Yupi Ariana, S. Indira Adhi Aswir Aswir Auli, Septriza Aulia R Sudarman Aurelius Silvanno Krisdiyanto Ayu Ning Trias Pratiwi Badruzzaman Aji Bahar, Herwina Bahfen, Munifah Basrinang Basrinang Basuki Sri Hermanto Basuki Srihermanto Bravo Pandiangan brina, ardi elsa Carissa, Caroline Clara Christian Prasenda Dani Aprizal DELLA ANDANDANINGRUM Desti Rahayu Devrisvansyah Irwan Dewi, Afini Riani Dhea Chandra Dewi, Dhea Chandra Dewi Dhina, Martha Vepti Diah Andika Sari Diah Larasati Diah Larasati, Diah DIRGANTARA WICAKSONO Duha, Mayunata Faanzir, Faanzir Fahlefi, Julian Farabi, Alward Fatmi Riandini Fatria, Akhmad Ridho Fatria, Akhmad Ridho Ferdi Ferdian Ferdian, Ferdi Fernanda, Aldy Fikri Alami Fikri Alami Fransiskus Afrie Hadi, Sofian Hadidah, Indah Hafizh Arrofiq, Abdil Handayani, Friska Hany Octavia Anggraini Happy Indira Dewi hardianto widyastomo Haryati Haryati Hatapayo , Abdul Aziz Hedi Saputra Herdiana, I Komang Tri hermawan arbenta Hermawan, M. Iqbal I Komang Tri Herdiana I Wayan Diana Ichsani, Muhammad Desyan Ikratul Herman Imam Wahyudin Indah Parsianti Irwan, Devrisvansyah Istikomah Istikomah Jafri, M. julian fahlefi karami, muhammad Kholiq, Muhammad Nur Kristianto Usman Kurniawan, Panca Kusmawati, Ati Laksmi Irianti Lusmeilia Afriami Lusmeilia Afriani Lusmeilia Afriani M Lucky Apriansyah Nawawi M. Fahmi Rinaldi M. Iqbal Hermawan Ma'rufi, Ma'rufi Manik, Markus Markus Manik Marlina Marlina martha vepti dhina Masdar Helmi Mirsa Susmarani Mughaffir Yunus Muhammad Aldani Muhammad Ilyas Muhammad Jafri Muhammad Jafri muhammad karami Muhammad Nur Kholiq Muhammad Rendi Ramdhani Nasruddin Nasruddin Natanael Sembiring Nawawi Nawawi Nawawi Nawawi Nazifah Husainah Nidya Putri Syahida Nursar, Achmad Satria NURWAHIDAH NURWAHIDAH Ofik Taufik Purwadi, Ofik Taufik Panca Kurniawan Pandiangan, Bravo Pangestu, Beno Balakosa Prasenda, Christian Pratama, Albertus Willy Pratiwi, Ayu Ning Trias Prayitno, Irwan Putra Andrean A. Putra, Riansyah Putra, Rizki Dwi Putri, Silfa Nayyira Qurrahman, Taufiq Rahayu Sulistyiorini Rahayu Sulistyorini Rahayu Sulistyorini Rahman, Muhammad Natsir Ramadhani, Taufik Rambe, Renold Pangidoan Rasyid, Ramly Renold Pangidoan Rambe Restu Agusni Retno Primantiko Retno Wulandari Rian Alfian Rian Alfian, Rian Riansyah Putra Rinaldi, M. Fahmi Rio Dwi Septian Risqon Septian Ritonga, Matnur Rizki Dwi Putra Rizki Prinanda Umar Rizki, Fildzah Rizki, M. Rois Rois Rosmini Maru Rufi'i S. Indira Adhi Ariana Sadil, Salsabila Atalia Sahidin, Sudirman Saiful Bahri Salsabila Atalia Sadil Sampurna, Sindu Abadi Sejati, Septias Herson Sembiring, Natanael Septian, Rio Dwi Septian, Risqon Setyanto Setyanto Sherliana Sherliana Sherliana, Sherliana Sholehuddin, Sholehuddin Sindu Abadi Sampurna Siti Yulianah M. Yusuf SRIYANTI RAHMATUNNISA Sudarman, Aulia R Suherman Suherman Sulaiman Zhiddiq, Sulaiman Sulistyiorini, Rahayu Sumiharni Sumiharni Sundi, Venni Herli Suryaningsih Suryaningsih Susilo, G.E. Syah, Aminudin SYAMSU ALAM Taufik Ramadhani Taufiq Qurrahman Umar Umar Umar, Rizki Prinanda Untung Suwardoyo Wahyudhi, Aden Wahyuni, Nanda Dwi Widyastomo, Hardianto Wijayanti, Nurulita WINATA, WIDIA Yandriguna, Medi yulisna anggi Yupi Ardianto Yusak Maryunianta Yusuf, Siti Yulianah M