Article Per Year (5 Year)
p-Index From 2021 - 2026
6.879
P-Index
This Author published in this journals
All Journal Jambi Medical Journal : Jurnal Kedokteran dan Kesehatan JURNAL ILMU DAN TEKNOLOGI PETERNAKAN Media Kesehatan Masyarakat Indonesia PREMISE LAW JURNAL Jurnal Peternakan Indonesia Jurnal Promkes: The Indonesian Journal of Health Promotion and Health Education Jurnal Ilmiah Ekonomi Islam Jurnal Ilmiah Universitas Batanghari Jambi Jurnal Masharif al-Syariah: Jurnal Ekonomi dan Perbankan Syariah Pendas : Jurnah Ilmiah Pendidikan Dasar JURNAL EKONOMI SAKTI (JES) Meteor STIP Marunda JMTS: Jurnal Mitra Teknik Sipil Jurnal Patriot Mitra Akademia: Jurnal Pengabdian Masyarakat Nursing Care and Health Technology Journal (NCHAT) Jurnal EduHealth Indo-MathEdu Intellectuals Journal Media Publikasi Promosi Kesehatan Indonesia (MPPKI) Jurnal Vokasi Mekanika Jurnal Salam Sehat Masyarakat (JSSM) International Journal of Health Science (IJHS) Jurnal Riset Rumpun Ilmu Kedokteran (JURRIKE) International Journal of Medicine and Health International Journal of Economics (IJEC) Jurnal Sejarah Islam JIPM: Jurnal Indragiri Penelitian Multidisiplin Jurnal Sarjana Ilmu Budaya Jurnal Keperawatan Jurnal Pengabdian Kolaborasi dan Inovasi IPTEKS Wawasan : Jurnal Ilmu Manajemen, Ekonomi dan Kewirausahaan International Journal of Health, Engineering and Technology Jurnal Pengabdian Harapan Ibu (JPHI) Central Publisher RENATA Jurnal Pengabdian Masyarakat Kita Semua GEMBIRA (Pengabdian Kepada Masyarakat) AL-DALIL: Jurnal Ilmu Sosial, Politik, dan Hukum Jurnal Ilmu Sosial dan Humaniora Sawerigading Sekolah Dasar: Kajian Teori dan Praktik Pendidikan
M. Ridwan
Unknown Affiliation
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Transportation Veterinary Other

Published : 67 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 67 Documents
Search

 3   4   5   6   7 
Comparative Analysis of JSA (Job Safety Analysis) of Smoked Fish MSMEs SAD Community and the General Public Hasanuddin Hasanuddin; Rd. Halim; Ummi Kalsum; Dwi Noerjoedianto; M. Ridwan
International Journal of Health Engineering and Technology Vol. 4 No. 2 (2025): IJHET JULY 2025
Publisher : CV. AFDIFAL MAJU BERKAH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55227/ijhet.v4i2.307

Abstract

This study aims to analyze occupational safety in the smoked fish production process through the Job Safety Analysis (JSA) approach in two groups of micro, small, and medium business actors, namely those managed by the Suku Anak Dalam community and those managed by the general public. The research method used is descriptive qualitative with a field observation approach and in-depth interviews to identify potential hazards and preventive measures taken at each stage of work. The results of the study indicate that in business units managed by the Suku Anak Dalam community, most work stages have the potential to cause hazards, but are not accompanied by adequate preventive measures. In contrast, in business units of the general public, several basic control measures have been implemented, such as the use of aids, gloves, masks, and protective shoes. This difference indicates a gap in the implementation of occupational safety due to factors of knowledge, culture, and access to information. This study concludes that a culture-based and educational occupational safety approach is needed to increase awareness and prevent work accidents, especially in remote indigenous communities
Gerakan Literasi dan Hibah Buku di Desa Citasuk, Padarincang, Serang, Banten Yusyama, Asep Yana; M. Ridwan; Puspita Maelani
Mitra Akademia: Jurnal Pengabdian Masyarakat Vol 8 No 2 (2025): Mitra Akademia: Jurnal Pengabdian Masyarakat
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/mapnj.v8i2.7182

Abstract

This community service program is motivated by the low literacy rate in rural areas, including in Citasuk Village, Padarincang District, Serang Regency of Banten province. This is caused by various factors, ranging from a lack of awareness of reading to the difficulty of accessing reading materials. In addition, the role of the government is still limited to provide reading materials, both in terms of budgeting and policies to promote literacy. As a result, the cultural factor considering literacy less important thing as well as the inability to read and write cause low awareness of literacy in the community. The purpose of community service is to increase awareness of reading and literacy. This community development program was arranged by a Participatory Action Research (PAR) method. The results show that interest of participant member in reading is increasing either for children group or adult group. It should also be noted that carrying out literacy activities in the village library environment is interesting due to the fact that it encourages children to access reading materials at the library freely and easily.Keywords: literacy, library, illiteracy eradication. Abstrak Program pengabdian kepada masyarakat ini dilatar belakangi karena tingkat literasi di pedesaan masih rendah, tidak terkecuali di desa Citasuk, kecamatan Padarincang, kabupaten Serang. Hal tersebut disebabkan oleh berbagai faktor, mulai dari kurangnya kesadaran membaca, serta faktor sulitnya akses buku bacaan di masyarakat. Selain itu, peran pemerintah yang masih memiliki keterbatasan, baik dari segi anggaran ataupun kebijakan yang masih tumpang tindih. Selain itu, faktor budaya masyarakat yang menganggap literasi bukan faktor yang penting karena tidak terbangunnya budaya membaca dan menulis, serta masih terdapat sebagian kecil masyarakat yang tidak bisa membaca dan menulis sehingga mengakibatkan sulitnya membangun kesadaran pentingnya literasi di masyarakat. Tujuan pengabdian kepada masyarakat untuk meningkatkan kesadaran membaca serta pentingnya literasi. Pengabdian masyarakat ini menggunakan metode Participatory Action Research (PAR). Hasilnya menunjukkan bahwa telah terjadi peningkatan minat baca anak usia setelah disediakannya bahan bacaan atau buku yang menarik sesuai minat anak. Selain itu keberhasilan juga terlihat untuk usia lansia telah mengalami kemajuan, walaupun tidak terlalu seignifikan. Akan tetapi terlihat dari minat belajar cukup tinggi. Selain memberikan pemahaman tentang pentingnya literasi, bentuk konkrit yang harus dilakukan ialah dengan turun langsung ke lapangan dan memberikan pelatihan literasi digital, terlibat dalam upaya peningkatan literasi, termasuk pemberantasan buta aksara. Melaksanakan kegiatan literasi di lingkungan perpustakaan desa yang mendorong anak untuk menjadikan kegiatan literasi sebagai kebutuhan dan budaya, serta memperindah perpustakaan untuk memudahkan masyarakat mengakses membaca untuk meingkatakan literasi di tingkat desa. Kata kunci: literasi, perpustakaan, pemberantasan buta aksara.
Effectiveness of Web-Based “Sipamer” Application and Lecture Method in Increasing Knowledge and Early Detection of Adolescent Mental Health Sari, Puspita; M. Ridwan; La Ode Reskiaddin
Media Publikasi Promosi Kesehatan Indonesia (MPPKI) Vol. 8 No. 9 (2025): September 2025
Publisher : Fakultas Kesehatan Masyarakat, Universitas Muhammadiyah Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56338/mppki.v8i9.7703

Abstract

Introduction: Mental illness is a health condition that causes changes in emotions, thoughts and behavior, often affecting teenagers due to psychological and hormonal changes that are not yet stable. This study aims to assess the effectiveness of using web-based applications and lecture methods in improving knowledge and the ability to self-detect mental health disorders in adolescents and first tested in the local Indonesian context. Methods: This study used a quasi-experimental design, namely two groups, namely pre-test-post-test, with purposive sampling involving 120 adolescents. The study was conducted in the Working Area of Putri Ayu Health Center, Jambi City, in two Posyandu Remaja Data collection was carried out from July to October 2024 through observation and filling out questionnaires, with data analyzed using covariance analysis. Results: Web-based application and lecture method effectively improved mental health knowledge (p<0.05). Both interventions significantly improved adolescents’ mental health self-detection scores in this group; however, the web-based application showed a greater mean increase than the lecture method. This suggests that the web-based sipamer application is more effective in improving adolescents’ mental health knowledge and self-detection skills.The advantages of the Sipamer application lie in its interactive self-screening features and expert system that facilitate early detection, making it a superior solution compared to conventional methods. Conclusion: Both the web-based application “Sipamer” and the lecture method effectively increase knowledge and self-assessment of adolescent mental health.
Jejak Muhammad Nejatullah Siddiqi dalam Perekonomian Islam Modern: Relevansi dan Adaptasi Teori Klasik dalam Konteks Kontemporer Rizkan Polem, T.; Azhari Akmal Tarigan; M. Ridwan
Jurnal Masharif al-Syariah: Jurnal Ekonomi dan Perbankan Syariah Vol 9 No 4 (2024)
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/jms.v9i4.23164

Abstract

Muhammad Nejatullah Siddiqi menjadi salah satu pelopor utama dalam pengembangan pemikiran ekonomi Islam modern. Penelitian ini bertujuan untuk mengeksplorasi jejak dan kontribusi Muhammad Nejatullah Siddiqi dalam perekonomian Islam modern, serta relevansi dan adaptasi teori-teori klasiknya dalam konteks kontemporer. Penelitian ini menggunakan metode studi pustaka (library research) dengan pendekatan deskriptif sebagai alat untuk menganalisis. Temuan menunjukkan bahwa implementasi pemikiran ekonomi Islam Muhammad Najetullah Siddiqi dalam konteks kontemporer mencakup berbagai aspek yang penting untuk menciptakan sistem ekonomi yang adil dan berkelanjutan. Penekanan pada pemenuhan kebutuhan dasar, sistem produksi dan distribusi yang adil, serta penerapan zakat dalam keuangan publik merupakan inti dari pemikiran Siddiqi yang telah diimplementasikan melalui berbagai kebijakan dan program di negara-negara Muslim, termasuk Indonesia. Seperti Bank Syariah di Indonesia menjalankan operasionalnya berdasarkan prinsip bagi hasil dan bukan bunga (riba). Ini mencerminkan kritik Siddiqi terhadap bunga dalam perbankan konvensional dan promosi sistem bagi hasil. Bank syariah ini berusaha untuk menciptakan sistem keuangan yang adil dan berkelanjutan, menghindari spekulasi dan praktik-praktik keuangan yang merugikan. Pemikiran ini membantu membentuk ekonomi yang lebih inklusif, berkeadilan, dan berorientasi pada kesejahteraan masyarakat luas.
Communication Strategy in Health Promotion to Increase Family Planning Participation at Rawasari Community Health Center Melva Ayu Sundari Barus; M. Ridwan; Silvia Mawarti Perdana
Jurnal EduHealth Vol. 14 No. 04 (2023): Jurnal eduHealt, 2023, December
Publisher : Sean Institute

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

Abstract

The increase in family planning participation at the Rawasari Community Health Center has decreased from 2018-2020. Judging from the data obtained from the Jambi City Health Service, in 2018 family planning participation in the Rawasari Community Health Center work area reached 84.3%, in 2019 family planning participation reached 74.2%, and in 2020 family planning participation reached 68.9% . In circumstances like this, an appropriate form of health strategy from Health Promotion officers is needed to increase Family Planning participation. This research aims to determine health promotion communication strategies in increasing family planning participation at the Rawasari Community Health Center. . The type of research used is qualitative research with a case study design. The selection of research informants was purposive with 13 informants. Data collection takes the form of interviews. The results of the research show that the communication strategy used in health promotion at the Rawasari Health Center is planning outreach activities, implementing outreach activities and monitoring after the outreach is carried out.
The Impact of Cigarette Price Increases on Smoking Behaviour in Online Motorcycle Taxis in Jambi City Yeni Mulyani; M. Ridwan; La Ode Reskiaddin
Jurnal EduHealth Vol. 15 No. 01 (2024): Jurnal eduHealt, Edition January - March, 2024
Publisher : Sean Institute

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

Abstract

Background. The number of active smokers is increasing year by year around the world. There are 1.1 billion smokers worldwide who have caused the deaths of more than 200 million people over the past 30 years. Smoking causes an increasing public health burden globally. Objective. From this study will be obtained efforts in controlling smoking behaviour of online motorcycle taxi drivers in jambi city.  Methods. This study uses a quantitative design with a cross-sectional approach. The sample used was 106 respondents. Which was taken by accidental sampling. Data collection using questionnaires by visiting online motorcycle taxi groups in 11 sub-districts of Jambi City by interviewing 11 sub-districts in Jambi city. Data analysis using chi-square test with univariate and bivariate analysis. Results. There is no impact of cigarette price increases on smoking behaviour in online ojek in Jambi City with a p-value of 0.016. With high cigarette prices, online ojek behaviour switches to cheaper brands. Conclusion. The increase in cigarette prices does not affect smoking behaviour in online motorcycle taxis in Jambi City.
Monetary Policy from An Islamic Perspective Rahmat; M. Shabri Abd. Majid; M. Ridwan; Ade Khadijatul Z. Hrp
International Journal of Economics (IJEC) Vol. 3 No. 1 (2024): January-June
Publisher : PT Inovasi Pratama Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55299/ijec.v3i1.505

Abstract

Government as holder mandate demanded so that capable of managing economy , Good in scale micro or more broadly on a macro scale. . Policy monetary that is program government Which in matter This done by bank central through market Money in framework influence situation macro. Islamic monetary policy goals are no different with objective policy monetary conventional that is guard stability from eye Money (Good in a manner internal nor external) so that growth economy Which equally that can be expected achieved. Study This use method qualitative, namely by reviewing the literature from a number of study Which Already There is. To realize this goal of Islam not only have to do economic reform and society get along with stripes Islam, but also requires the positive role of government and all policy country including fiscal, monetary And income must in tune. Practices monopoly must be eliminated and every effort should be made to promote all factors Which able to produce increased goods and services.
FOOD CONSUMPTION PATTERNS IN TODDLERS IN LOKUS STUNTING VILLAGE, BUNGO DISTRICT Perdana, Silvia Mawarti; M. Ridwan
Jambi Medical Journal : Jurnal Kedokteran dan Kesehatan Vol. 11 No. 2 (2023): Jambi Medical Journal: Jurnal Kedokteran dan Kesehatan Special Issues: Jambi M
Publisher : FAKULTAS KEDOKTERAN DAN ILMU KESEHATAN UNIVERSITAS JAMBI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jmj.v11i2.25244

Abstract

background:The Indonesian Nutrition Status Study (SSGI) in 2021 showed that Bungo Regency data has a stunted toddler prevalence of 22.9%. Several research results have shown that the problem of stunting in toddlers is related to low protein intake in daily food consumption. On the other hand, Jambi Province has local food sources of protein, especially freshwater fish as an alternative to daily side dishes. This study aims to examine the pattern of protein food consumption in Sungai Mengkuang and Sungai Puri Village as Bungo Regency's stunting locus village. Method: Quantitative methods are used to measure the toddler's pattern of protein food consumption with a food frequency questionnaire and food recall. Result: The results showed that food protein consumption was already contained in children's complementary feeding, but with the number of servings that did not meet the balanced nutrition guidelines (< 100% daily recommendations). Discussion: As many as 63.5% of respondents have received complementary feeding ≥ three times a day. Conclusion: It is necessary to optimize the production, distribution, and consumption of local protein foods as a solution to accelerate reduction of stunting.
PENDAMPINGAN EDUKASI KESEHATAN IBU DAN ANAK SERTA PENCEGAHAN DIARE PADA KOMUNITAS SUKU ANAK DALAM DI DESA DWI KARYA BAKTI KECAMATAN PELEPAT KABUPATEN BUNGO Dwi Noerjoedianto; Ummi Kalsum; M. Ridwan; Rd. Halim; Hendra Dermawan Sitanggang; Helmi Suryani Nasution; Renny Listiawaty
Jurnal Gembira: Pengabdian Kepada Masyarakat Vol 1 No 05 (2023): OKTOBER 2023
Publisher : Media Inovasi Pendidikan dan Publikasi

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

Abstract

Suku Anak Dalam (SAD) merupakan suku terasing yang ada di Provinsi Jambi yang tersebar di beberapa Kabupaten, Kecamatan dan Desa, salah satunya di Desa Dwi Karya Bhakti, Kabupaten Bungo. Kesehatan masih menjadi masalah pada komunitas SAD, khususnya kesehatan ibu dan anak. Posyandu merupakan salah satu upaya efektif berbasis masyarakat untuk meningkatakan kesehatan masyakat. Namun, Komunitas SAD membutuhkan pendampingan secara khusus, melalui Posyandu yang dirancang secara khusus dan disesuaikan dengan kondisi dan kemampuan dasar komunitas ini. Tujuan kegiatan ini adalah melakukan pendampingan edukasi kesehatan ibu dan anak serta pencegahan diare pada komunitas SAD di Desa Dwi Karya Bhakti, Kabupaten Bungo. Kegiatan ini dilaksanakan melalui upaya pendampingan komprehensif dengan menempatkan 5 mahasiswa tinggal bersama mitra selama 6 bulan (bulan Juli s.d. Desember 2023). Kegiatan ini dilakukan melalui beberapa langkah yaitu pendekatan kepada pemuka adat, pendampingan interpersonal kader Posyandu Khusus SAD, edukasi, pengadaan media edukasi, dan pemantauan tumbuh kembang bayi dan balita, serta kegiatan pendampingan edukasi KIA dan pencegahan diare. Untuk memperlengkapi kader posyandu, maka telah dikembangkan media edukasi berbahasa lokal. Kegiatan pendampingan edukasi KIA dan pencegahan diare kepada kader di posyandu khusus SAD telah terlaksana dengan baik. Terjadi peningkatan pengetahuan tentang KIA dan pencegahan diare dari komunitas SAD serta kemampuan dari kader posyandu khusus SAD dalam melaksanakan kegiatan posyandu. Kegiatan ini diharapakan dapat berkontribusi dalam peningkatan kesehatan masyakat komunitas Suku Anak Dalam di Desa Dwi Karya Bhakti Kecamatan Pelepat Kabupaten Bungo.
Faktor-Faktor yang Mempengaruhi Perilaku Merokok pada Siswa SMKN 3 Kota Jambi Tahun 2025 Wahyu Nurjayanti; M. Ridwan; Kasyani Kasyani
JURNAL RISET RUMPUN ILMU KEDOKTERAN Vol. 4 No. 2 (2025): Agustus : Jurnal Riset Rumpun Ilmu Kedokteran
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrike.v4i2.6058

Abstract

Jambi Province has the highest prevalence of tobacco smoking among individuals aged 15 years and above in Indonesia within the past month. In addition, Jambi also records the highest average number of cigarettes smoked per day by individuals in this age group, with an average of 18 cigarettes per day. This situation highlights the significant level of tobacco consumption in the province, which may affect adolescent smoking behavior, including among vocational school students. Objective: To analyze the factors influencing smoking behavior among students of SMKN 3 Kota Jambi.  This study was a quantitative research with a cross-sectional design. The sample consisted of 114 students selected using random sampling techniques. The study was conducted at SMKN 3 Kota Jambi. The dependent variable was smoking behavior, while the independent variables included knowledge, parental influence, peer influence, and exposure to cigarette advertisements. Data were analyzed using univariate and bivariate analyses with the chi-square test at a 95% confidence interval. The proportion of students who smoked at SMKN 3 Kota Jambi in 2025 was 46.5%. There were significant associations between smoking behavior and knowledge (p-value = 0.008; PR: 1.730; 95% CI: 1.163–2.573), parental influence (p-value = 0.023; PR: 1.597; 95% CI: 1.081–2.357), and peer influence (p-value = 0.001; PR: 2.038; 95% CI: 1.346–3.086). However, no significant association was found between exposure to cigarette advertisements and smoking behavior (p-value = 0.127; PR: 1.366; 95% CI: 0.929–2.010).The factors influencing smoking behavior among students of SMKN 3 Kota Jambi were knowledge, parental influence, and peer influence.
Co-Authors . Asparian, . . Ja'far A. Fitriani Ade Khadijatul Z. Hrp Adelina Fitri Agustina Dwiyanti Aini Zulaikah Ajeng Tri Yani Safitri Al-amin, Muhammad Bagus Alya Aprillini Andi Angelina Masyitho Andi Subandi Andree Aulia Rahmat Andy Amir Ani Marlia Aprilia, Nur Aini Arif Hidayat Arin Setiani Arnild Augina Mekarisce Ashar Nuzulul Putra Azhari Akmal Tarigan Bs. Titi Haerana Budi Aswin Budi Kudwadi Dame Try Lestari Saragih David Kusmawan Dhayank Thamara Didi Syahputra Dwi Noerjoedianto Ediwarman Ediwarman Elisa Murti Puspitaningrum Elnifara, Dinda Fadhil Agriansyah Fadillah Nurtafiana , Fadillah Framz Hardiansyah Haeriyyah, Haeriyyah Hafizah, Nor Hasanuddin Hasanuddin Helmi Suryani Nasution Hendra Dermawan Sitanggang Hendri Irawadi Herdiansyah Hidayat, Irfan Afri Holifah, Rodiatul Hubaybah, Hubaybah I. M. Saleh Indra Muchlis Adnan Irwandi Rachman, Irwandi Ismi Nurwaqiah Ibnu Istiqomah Jamilah Jasman Jasman Jati Santoso Jonathan Disyon Manurung Juari, Iskandar Kasyani Kasyani khusah, khusahibliyah La Ode Reskiaddin Lesmana, Heru Syarli Listiawaty, Renny M Nabiel Ramadhan M. Shabri Abd. Majid M. Taufik Akbar Maryam Batubara Mas'odi Maya Handayani Melva Ayu Sundari Barus Muda, Sultan Iskandar Muhammad Alwi Setiawan Muhammad Rifqi Azhary Munfarida, Tuti Nadhira Beninda Nazrina Safitri Nelly Sulis Tilawati Nelvi Erizon Nur Annisa Nurfadillah Wahid Nurhayati Hutagalung Nyong Eka Teguh Iman Santosa Oka Lesmana Oktanola Mairiza P. Dwikora Simanjuntak Priskilla Tabitha Kaban purwantono purwantono puspita maelani Puspita Sari Puspita Sari Puspitasari Putri Rizki Utami Putri Roztavia Febrianti Putri, Fitria Eka R. HERLAN GUNTORO Rahmat Rahmat Daim Harahap Rd. Halim Rifqi Al Ariq Rifqi Azhari Rizhalia Wardiah Rizkan Polem, T. Robby Mustofa Said Habibi Harahap Salfiantini Salfiantini Sama' Sapta Putra Satifa Dayanti Putri Silvia Marwati Perdana Silvia Mawarti Perdana Siti Nur Azizah Siti Rofiqoh Syahrizal Syahrizal Syamsul Bahri Abd. Hamid Tambunan, Khairina Usi Lanita Vinna Rahayu Vinna Rahayu Ningsih Wahyu Nurjayanti WIDAYANTI, DEWI Yeni Mulyani Yufi Afrilia Nadillah yusyama, asep yana Zafira Dwi Amarta Putri Kamarullah Zainuddin Zakiah Rahmi Siagian