Claim Missing Document
Check
Articles

Penyuluhan Irigasi Tetes Pada Masyarakat Di Dusun Dasan Tereng Desa Gumantar Kabupaten Lombok Utara Negara, I Dewa Gede Jaya; Karyawan, I Dewa Made Alit; Rohani; Suparjo; Supriyadi, Anid; Budianto, M Bagus; Setiawan, Ery; Suroso, Agus; Sulistiyono, Heri; Eniarti, Miko; Pradjoko, Eko; Saadi, Yusron
Jurnal Pengabdian Magister Pendidikan IPA Vol 8 No 2 (2025): April-Juni 2025
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v8i2.11210

Abstract

The Gumantar Village community is a community located in the hills with terraced and sloping village conditions. Most of the community has yards and gardens, although not very large with terraced land conditions. The water source of the Gumantar Village Community comes from the upstream hillsides, with the number of hamlets as many as 16 hamlets with a population of around 2000 people and most of them are field farmers. Considering the potential of the surrounding land which is very large and in the form of terraces, it is necessary to provide counseling to the community on how to utilize limited water sources for farming activities with a drip irrigation system. To help the community, counseling is needed so that the community quickly understands the drip irrigation system. This community service aims to provide efficient irrigation counseling, namely drip irrigation, to encourage farming to be carried out around the yard. The community service consists of location survey activities, counseling, discussion and question and answer sessions, and evaluation. This community service has succeeded in providing counseling to 35 people consisting of housewives and fathers, as well as young people from the Dasan Tereng Hamlet mosque. Participants have gained knowledge about drip irrigation and obtained examples of the use of drip irrigation in yards and dry land, so that people are able to utilize limited water in the dry season for agricultural purposes in their yards
Sosialisasi Kesiapsiagaan Gempa Bumi sebagai Upaya Mitigasi Bencana di Desa Jembatan Kembar Timur Kabupaten Lombok Barat Saidah, Humairo; Muhajirah; Wiradarma, Lalu Wirahman; Rohani; Hasyim; Karyawan, I Dewa Made Alit; Negara, I Dewa Gede Jaya; Yasa, I Wayan; Supriyadi, Anid
Jurnal Pengabdian Magister Pendidikan IPA Vol 8 No 2 (2025): April-Juni 2025
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v8i2.11626

Abstract

East Jembatan Kembar Village is located in an earthquake-prone area in West Lombok Regency, making it essential to enhance community capacity in disaster preparedness. This outreach activity aimed to increase community awareness of earthquake preparedness and to initiate the formation of a community-based structure capable of acting during emergencies. The method used included face-to-face counseling and participatory discussions involving the village head, village staff, community leaders, youth, and local residents. Topics covered included basic knowledge of earthquakes, appropriate actions before, during, and after an earthquake, and the importance of forming a Community Disaster Resilience Group (KMTB). Although the activity was conducted in the morning and received enthusiastic support from the village government, public participation was limited due to time constraints with residents' daily work routines. Nevertheless, the activity successfully delivered key information to attendees and led to the formation of the Community Disaster Resilience Group as a continuation of the program. This group is recommended for immediate formalization by the village government so that it can establish statutes and bylaws, build cross-sector coordination, and fulfill its role in preparedness and emergency response. The results demonstrate that collaborative efforts between local authorities and communities can be an effective strategy for building village resilience to disasters.
Penyuluhan Biopori Pada Masyarakat Di Dusun Dasan Tereng Desa Gumantar Kabupaten Lombok Utara Provinsi Nusa Tenggara Barat.: Resapan Biopori Negara, I Dewa Gede Jaya; I Dewa Made Alit Karyawan; Rohani; Hasim; Anid Supriyadi; Humairo Saidah; Ery Setiawan; I Wayan Yasa; Salehudin; Eko Pradjoko
Jurnal Pengabdian Magister Pendidikan IPA Vol 8 No 3 (2025): Juli-September 2025
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v8i3.12657

Abstract

Masyarakat Desa Gumantar merupakan kondisi perkampungan berterasering dan berlereng, sebagian besar Masyarakat memiliki lahan pekarangan yang belum dimanfaatkan. Desa Gumantar berasal dari dilereng perbukitan dengan jumlah dusun yang ada sebanyak 16 dan sebagian besar masyarakatya sebagai petani ladang. Memperhatikan potensi lahan pekarangan yang ada belum dimanfaatkan optimal, maka perlu disentuh dengan pemanfaatan lahan untuk peresapan air dimusim hujan melalui penyuluhan Biopori, dengan tujuan membantu masyarakat agar dapat berperan aktif dalam pelestarian lingkungan. Pengabdian terdiri dari kegiatan survey lokasi, penyuluhan, diskusi dan tanya jawab serta evaluasi. Pengabdian ini telah berhasil memberi penyuluhkan pada 30 masyarakat dan pemuda remaja masjid Dusun Dasan tereng. Peserta telah memperoleh pengetahuan tentang resapan Biopori dengan contoh cara pemasangannya pada lahan pekarangan.
Pelatihan Penggunaan Sistem Irigasi Tetes Driptip Untuk Pengembangan Luas Tanam Di Sekitar Wilayah Penyangga KEK Mandalika.: pelatihan Negara, I Dewa Gede Jaya; Salehudin; Desi Widiyanti; Fera Fitri Salsabila; Agus Soroso; Anid Supriyadi; Ery Setiawan; I Dewa Made Alit Karyawan; Humairo Saidah; Hasim; Rohani; I Wayan Yasa; Nufalia Hidayati
Jurnal Pengabdian Magister Pendidikan IPA Vol 8 No 3 (2025): Juli-September 2025
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v8i3.12728

Abstract

Di wilayah Pujut yang merupakan wilayah penyangga KEK Mandalika, jika diperhatikan kondisinya termasuk dalam areal sawah tadah hujan, karena dimusim kemarau lahan pertanian hanya sebagian kecil yang dapat diusahatanikan karena terbatasnya sumber air irigasi, akan tetapi pada saat musim hujan hampir seluruh areal persawahan yang ada digunakan untuk pertanian penanaman padi. Memperhatikan di musim kemarau masih ada kegiatan pertanian yang dilakukan masyarakat yang mampu di beberapa lokasi yang memanfaatkan air tanah dangkal yang dibor, maka hal ini perlu dikembangkan untuk meningkatkan kegiatan pertanian dimusim kemarau. Terbatasnya air dimusim kemarau dan pemanfaatan air yang terbatas di lokasi ini perlu cara pemanfaatan air secara hemat, agar usahatani dapat ditingkatkan dengan luas lahan yang lebih luas di sekitar sumur bor yang sudah dibangun. Untuk itu perlu dilakukan pelatihan penggunaan irigasi hemat air seperti sistem tetes dengan memanfaatkan air sumur bor yang ada pada masyarakat, pada pertanian tanaman semusim sebagai pembelajaran masyarakat di Desa Segala Anyar. Pengabdian ini dilakukan untuk melatih masyarakat dalam penggunaan irigasi tetes driptip dengan pentanian tanaman cabai di Desa Segala Anyar.Kegiatan ini menggunakan jaringan irigasi tetes driptip pada sumber air tanah dan media tanam polybag dengan tanaman cabai. Kegiatan diskusi dan tanyajawab dilakukan pada beberapa tahapan kegiatan pelatihan irigasi dan pada akhir kegiatan dilakukan penerahan sistem irigasi pada masyarakat untuk mendia pembelajaran masyarakat tani. Pengabdian ini telah memberikan sistem irigasi tetes satu paket sebagai media pembelajaran, telah melatih 9 perwakilan masyarakat petani di lokasi desa Segala Anyar. Pelatihan telah memberi pengalaman pada peserta dalam penggunaan irigasi tetes driptip yang dapat diterapkan pada lahan pertanian yang terbatas.
Pengaruh Diameter Pipa Primer Pada Irigasi Tetes Bertingkat Negara, I Dewa Gede Jaya; Hartana, Hartana; Supriyadi, Anid; Saadi, Yusron; Yasa, I Wayan; Julio, Ryan Bagus
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 10 No. 1 (2024): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v10i1.573

Abstract

Multilevel drip irrigation is an irrigation method that supports water-saving agricultural activities in limited areas by channeling water through perforated pipes from emitters. An ideal multilevel drip irrigation system can provide the same volume of droplets to plants, so that the distribution of irrigation water and the uniformity of drip irrigation are important factors that need to be considered when using drip irrigation to provide plant irrigation. This research aims to determine the effect of using variations in the diameter of PVC pipes as primary pipes on the distribution of drip irrigation and its uniformity. The primary irrigation network tested for each network to the 1st floor to the 3rd floor consists of ½", ¾" diameter and 1" pipe, while the secondary and lateral drip pipe networks use ½" PVC. The test was carried out on an area of 4 m x 1 m x 1.8 m with a distance between levels of around 0.9 m, with an irrigation water source from a 200 liter tank placed on a tower with a height of 2.5 m.The results of the research show that the discharge produced by the main pipe is different on each floor of the irrigation network, on the 1st floor the discharge is 127.13 cm3/second and on the 3rd floor the discharge is 120.91 cm3/second, while on the 2nd floor the discharge is between the values of the 1st floor discharge. and 3rd floor. Regarding the results of the distribution of drip irrigation water volume, it is known that the average does not show significant differences due to differences in network operations or due to differences in pipe diameters used, where the values for floors 1 to 3 are respectively 68.75 ml, 68 .47ml, 68.19ml. The uniformity of drip irrigation shows results above 94% on all network floors and is considered very good.
Pengaruh Variasi Diameter Pipa Primer Terhadap Pola Resapan Air Irigasi tetes Bertingkat Pada Media Tanam Polybag Negara, I Dewa Gede Jaya; Hartana, Hartana; Supriyadi, Anid; Suroso, Agus; Julio, Ryan Bagus
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 10 No. 2 (2024): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v10i2.603

Abstract

Multilevel drip irrigation is an irrigation method that supports water-saving agricultural activities in limited areas by channeling water through perforated pipes from emitters. The ideal multistage drip irrigation system can provide the same drip volume to plants, so the distribution of irrigation water and its depth need to be important factors to pay attention to in order to provide optimal plant irrigation. This research aims to determine the effect of using variations in primary channel pipe diameter on the distribution of drip irrigation and the depth of infiltration of irrigation products in a 3 (three) tier drip irrigation network. Tests were carried out on primary pipes from floors 1 to 3 with a diameter of ½", ¾" and pipes 1", with lateral drip pipes with ½" PVC. The size of the test field is 4 m x 1 m x 1.8 m and the distance between levels is around 0.9 m and the irrigation water source from a 200 liter tank is 2.5 m high. The research results showed that irrigation distribution results were quite good at all levels of the irrigation network, namely 70 ml and 68 ml. Irrigation patterns do not have a significant effect on the results of irrigation distribution due to variations in primary pipe diameter. A soil composition of 30% compost has achieved irrigation infiltration with a depth of 21 cm, including the fastest, namely 25 minutes and for 70% soil, an irrigation infiltration time of 35 minutes is required.
PELATIHAN IRIGASI TETES BERTINGKAT UNTUK TANAMAN HORTIKULTURA DI DESA JAGARAGA KECAMATAN KURIPAN KABUPATEN LOMBOK BARAT Negara, I Dewa Gede Jaya; Pradjoko, Eko; Pracoyo, Atas; Akmaludin, Akmaludin; Supriyadi, Anid; Saadi, Yusron; Suparjo, Suparjo; Yasa, I Wayan; Saidah, Humairo; Hasyim, Hasyim
Jurnal Pepadu Vol 5 No 1 (2024): Jurnal Pepadu
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/pepadu.v5i1.3973

Abstract

The people of Poktan Beriuk Maju, Jagaraga Village, are mostly farmers who own land with varying amounts of land, and have a minimum of 2 acres of yard land and many of them are empty, so they need to be used for home farming to help provide food independently. The existence of water sources from springs around settlements and water from shallow wells can also be used to support agricultural activities in the residential area of ​​each potential house. Apart from that, by utilizing limited water sources, such as water from shallow wells and springs around housing, it is an opportunity for the community to farm vegetables and the like to help with the community's daily kitchen needs. This service aims to train people to make multilevel drip irrigation so that they can later be used as a farming method in their home gardens. Before being trained, residents need to be given knowledge about efficient drip irrigation so that participants gain sufficient knowledge about irrigation because its application is very different from traditional irrigation. The service was carried out in the initial stages of survey, the stage of strengthening efficient irrigation, the training stage of making multi-level drip irrigation networks using PVC pipes with emitters, the land was filled with polybags filled with soil as a planting medium. Activities consist of outreach on irrigation and drip irrigation as well as training. This service has succeeded in providing knowledge about irrigation and drip water efficient irrigation at the Beriuk Maju Poktan. It has succeeded in building a multi-level drip irrigation network and is ready for farming use, and can be continued by applying it to horticultural crops as a medium for learning about residential farming.
PENYULUHAN PEMANFAATAN SUMBER AIR TERBATAS DI DAERAH PERBUKITAN TIBU LILIN KECAMATAN LEMBAR KABUPATEN LOMBOK BARAT Negara, I Dewa Gede Jaya; Saidah, Humairo; Rohani, Rohani; Suparjo, Suparjo; Pracoyo, Atas; Supriyadi, Anid; Suroso, Agus
Jurnal Pepadu Vol 5 No 2 (2024): Jurnal PEPADU
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/pepadu.v5i2.4488

Abstract

The people of Tibu Lilin Hamlet are a hamlet located in the hills south of Gumise Hamlet and located just to the north of Selamat Harbor. Along the village road are steep hillsides that have been used as villages, so the topography of this hamlet is very irregular. The community's water source during the rainy season comes from springs around the village in the form of water from springs, well water and seepage water from rock fragments on existing hillside cliffs. Meanwhile, during the dry season, most of the water sources dry up and only one or two locations have water with very minimal potential. Water shortages during the dry season are met by buying water from collectors who transport it by truck or tanker to Tibu Lilin Hamlet. Therefore, this service aims to educate the community about how to utilize limited water sources around the hills to help provide community water. The service was carried out in the stages of location coordination, location survey, outreach activities, discussion and question and answer as well as evaluation. Counseling was provided in the form of water storage methods, water storage tank methods and ways of managing water sources in mutual cooperation. This service has succeeded in providing the Tibu Lilin community with knowledge about water sources, how to collect water and manage water sources together. The community has been shown how to make water reservoirs and how to make pipe networks to channel water to the hamlet.
ANALISIS KEMAMPUAN PERESAPAN LIMPASAN AIR HUJAN PADA MODEL EMBUNG LAHAN DIAGONAL (ELD) TERHADAP GRADASI LAPISAN TANAH DI LAHAN KRITIS: Infiltration Capability Analysis of Embung Lahan Diagonal Model to Runoff at Gradation Layer Soil in Critical Land Negara, I Dewa Gede Jaya; Supriyadi, Anid; Salehudin, Salehudin
Spektrum Sipil Vol 3 No 2 (2016): SPEKTRUM SIPIL
Publisher : Jurusan Teknik Sipil Fakultas Teknik Universitas Mataram

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

Abstract

Krisis air sangat sering terjadi pada daerah aliran sungai (DAS) yang kritis dan ditunjukkan oleh adanya permukaan lahan yang gundul dan tandus, aliran air sungai kritis, air sumur dangkal sekitar yang kering dan terjadi banjir pada musim hujan. Kasus tersebut sering kali terjadi sebagai indikasi rusaknya DAS hulu yang merupakan daerah tangkapan hujan. Uji embung lahan di Laboratorium untuk meningkatkan resapan air ke dalam tanah telah dilakukan (Jaya Negara,dkk, 2014), dengan hasil bahwa pada formasi embung lahan (EL) secara diagonal diperoleh resapan air paling banyak, akan tetapi pengaruh gradasi belum ditinjau sama sekali.Mengingat permasalahan lahan kritis sangatlah kompleks, maka pengaruh gradasi terhadap limpasan dan kemampuan infiltrasi lahan pada uji formasi EL,perku diketahui agar dapat membantu memprediksi resapan hujan yang terjadi pada lahan dalam perbaikan cadangan air dalam tanah. Penelitian ini bertujuan untuk mengetahui pengaruh gradasi lahan terhadap potensi penampungan oleh embung lahan diagonal dengan eksperimental di Laboratorium. EL uji berukuran: 5cm x 10cm x 5cm pada intensitas hujan I2 =187,69 mm/jam. Dimensi lahan uji terdiri dari ukuran: 100cm x 100cm x 30 cm untuk tanah kasar dan uji lapisan gradasi berukuran 100cm x 100cm x 10 cm. Data analisis yang diperlukan mencakup, keseragaman gradasi lapisan, lama waktu infiltrasi, karakteristik limpasan dan lama pencapaian infiltrasi pada tebal lapisan tertentu. Hasil analisis dipresentasikan dalam bentuk tabel dan gambar, dibahas secara deskriptif. Hasil penelitian menunjukkan bahwa, pada tanah pasir lanauan dengan keseragaman baik sampai sangat baik dan koefisien gradasi buruk tidak terjadi limpasan hujan pada intensitas I2. Jadi dari penelitian ini, tingkat keseragaman lapisan dan gradasinya tidak menunjukan trend terjadinya limpasan permukaan.Pada tanah pasir lanauan dengan 46% kandungan lanau, limpasan hujan yang terjadi masih sangat rendah.Sedangkan pada tanah pasir lanauan dengan kandungan lanau 60 %, limpasan hujan dipermukaan tanah terjadi sangat potensial. Sehingga penggunaan Embung lahan yang diagonal lebih cocok pada tanah dengan kandungan lanau 60% ke atas.
ANALISIS MODEL PENAMPUNGAN LIMPASAN HUJAN DENGAN EMBUNG LAHAN PADA DAERAH ALIRAN SUNGAI (DAS) KRITIS TERASERING: Run off Recharge Embung Lahan Model Analysis at Critical Watershed Negara, I Dewa Gede Jaya; Supriyadi, Anid; Salehudin, Salehudin; Ainudin, Nurun
Spektrum Sipil Vol 5 No 1 (2018): SPEKTRUM SIPIL
Publisher : Jurusan Teknik Sipil Fakultas Teknik Universitas Mataram

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

Abstract

Rusaknya daerah aliran sungai (DAS), sering kali ditunjukkan oleh adanya penurunan sumber air di sungai, aliran air sungai keruh di musim hujan dan hilangnya sumber-sumber air permukaan. Pemanfaatan DAS hulu untuk pertanian dapat menjadi penyebab terjadinya kerusakan resapan DAS tersebut. Perbaikan kondisi sumber air di DAS dengan peningkatan resapan air hujan perlu dilakukan pada petak lahan, agar limpasan hujan selesai diresapkan di petak lahan. Untuk itu uji embung lahan sebagai media peresapan limpasan hujan dipetak lahan perlu dilakukan agar limpasan tidak terbuang ke sungai. Penelitian ini bertujuan untuk menguji embung lahan (EL) di petak lahan terasering dan pengaruhnya terhadap variasi intensitas hujan, luas lahan dan kemiringan terhadap potensi limpasan yang terjadi. Uji dilakukan dengan media uji lahan terasering berukuran A1= 150 cm x 100 cm, A2=150 cm x 80 cm, A3=150cm x 60 cm dan A4= 150 cm x 40 cm dengan kadar air 20%, pada intensitas hujan yang uji I1= 64,38 mm/jam, I2=30,69mm/jam dan I3=12,35 mm/jam. Pengujian dilakukan selama 1-2 jam sampai limpasan dipetak lahan terjadi. Hasil penelitian menunjukkan bahwa,limpasan hujan akan semakin besar terjadi pada intensitas hujan yang semakin besar dan pada kemiringan terasering yang semakin besar. Pada intensitas I2 dan I1, limpasan hujan terjadi dan pada intensitas I3, limpasan belum terjadi sigifikan. Selain itu pada luas terasering yang semakin besar, limpasan yang dihasilkan juga semakin besar. Dengan ukuran panjang dan lebar EL yang diperlukan masing-masing lahan 1/10 dari panjang lahan dan 1/20 dari lebar lahan. Jumlah EL terpasang dilahan disesuaikan dengan potensi limpasan yang akan ditampung.
Co-Authors , Kisman Abdi Fadillah Adhitya Halim .P Agastya, Dewandha Mas Agus Soroso Agus Suroso Agus Suroso Agus Suroso Agus Suroso Agus Suroso Agustono Setiawan Ainudin, Nurun Akbar, Tabrani Akmaludin Akmaludin, Akmaludin Anid Supriadi Anid Supriyadi Anid Supriyadi ANID SUPRIYADI Anid Supriyadi Anid Supriyadi ATAS PRACOYO Atas Pracoyo Bakti, Lalu Arifin Aria Bambang Budi Santoso Bambang Hari Kusumo Bambang Hariyanto Bambang Hariyanto Budianto, M Bagus BUDIANTO, M. BAGUS Budianto, Muh. Bagus Desi Widianty Desi Widiyanti Desi Widiyanti Dewandha Mas Agastya DEWANDHA MAS AGASTYA Dewi, Kurnia Didi Supriyadi Agustawijaya Didik Agusta Wijaya Eko Pradjoko EKO PRADJOKO Eniarti, Miko ERY SETIAWAN Ery Setiawan Ery setiawan Faeruzza Athiya Fera Fitri Salsabila GUNAWAN, ADRI Hartana Hartana HARTANA HARTANA Hartana, Hartana Hasim Hasyim Hasyim, Hasyim hasyim, hasyim Heri Sulistiyono Heri Sulistiyono Heri Sulistiyono Heri Sulistiyono Heri Sulistiyono, Heri HERI SULISTYONO Hidayat, Syamsul Hidayati, Nufalia Humairoh Saidah I B Giri Putra I Gusti Made Kusnarta I Kade Wiratama I Nyoman Merdana I W Sugiartha I Wayan Joniarta I Wayan Suteja I Wayan Yasa I Wayan Yasa I Wayan Yasa I Wayan Yasa I Wayan Yasa I Wayan Yasa, I Wayan IAO Suwati Sideman Ida Ayu Oka Suwati Sideman Ida Bagus Giri Putra IDewa MadeAlitKaryawan Isnaniar Isnaniar Rahmatul Azizah IWayan Suteja Joko Priyono Julio, Ryan Bagus Jurnal Pepadu Karyawan, Dewa Made Alit Karyawan, I Dewa Made Alit Kisman Lalu Arifin Aria Bakti Lalu Wirahman Wiradarma Lilik Hanifah Lilik Hanifah Lolita Endang Susilowati Luvitasyari, Tirta Intan M Bagus Budianto M R. Sepriadi Made Anggitha Dewi Made Mahendra Made Mahendra MadeMahendra Mahendra, Made Merdana, I Nyoman Miko Eniarti Muh Bagus Budianto Muhajirah Ngudiono Ngudiono Ni Luh Ayu Aprilianti Ni Putu Ira Sintia Kurnianti Nufalia Hidayati Nur Chayati Nurrachman Pathurahman PRACOYO, ATAS Purwangsa, Herdi PUTRA, IDA BAGUS GIRI Ratna Yuniarti Ratna Yuniarti Ratna Yuniarti Rohani Rohani Rohani SAIDA, HUMAIRO Saiful Anwar Saleh, Ramdan Salehuddin Salehuddin, Salehuddin Salehudin Salehudin Salehudin Salehudin, Salehudin Salsabila, Fera Fitri Seniari, Ni Made Sideman, IAO Suwati Sukartono Suparjo Suparjo Suparjo SUPRIYADI, ANID Suwardji Tajidan, Tajidan Tri Rachmanto Veithzal Rivai Zainal WIRADARMA, LALU WIRAHMAN WIRADHARMA, LALU WIRAHMAN Yusron Saadi Yusron Saadi Yusron Saadi YUSRON SAADI Yusron Saadi