Claim Missing Document
Check
Articles

The Effect of The Combination Of Carde Waste, Dry Banana Leaves (Klaras) and Rice Husb As A Planting Media for Growth of Straw Mushroom (Volvarieela Volvacea L) Nabila Rizka Anisa; Samingan Samingan; Hafnati Rahmatan; Iswadi Iswadi; Wiwit Artika
Jurnal Ilmiah Mahasiswa Pendidikan Biologi Vol 6, No 4 (2021): November 2021
Publisher : Jurnal Ilmiah Mahasiswa Pendidikan Biologi

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

Abstract

ABSTRACTMushroom cultivation has bright prospects because the natural and environmental conditions in Indonesia are very supportive. Straw is a planting medium that is commonly used for the growth of edible mushrooms. Cardboard, klaras and husks are one of the household wastes that can be used as an alternative planting medium for mushroom as a substitute for straw. This study seeks to find out the effect of a combination of cardboard. Klaras and rice husks as a growing medium for mushroom and to find out the comparison of the composition of cardboard waste and klaras growing media that can have the best effect on the growth of edible mushrooms. This research was conducted in Rukoh Village, Banda Aceh from October to November 2019 for ± months. This study used a quantitative method in the form of an experiment with a completely randomized  design (CRD) consisting of 7 treatments and 4 replications. Data were analyzed using further test of Least Significant Difference (LSD). The results showed that cardboard waste, klaras and husks had the best effect on the growth of edible mushrooms on the wet weight of mushroom and the number of fruit bodies was in treatment 6 with the composition (cardboard 25% + Straw 25% + and husks 50%) with average weight. Wet 25.97 grams and the average number of fruit bodies 4.53. Whereas the effect of cardboard waste, klaras and husks has an effect on the growth of mushroom with the best growth in the size of mushroom fruit body diameter in treatmen 4 with a combination of 50% cardboard waste, 25% klaras and 25% rice husks with an average body diameter. Mushroom fruit is 6.57 cm.Keywords: Mushrooms, Waste, Cardboard, Klaras, Rice Husk, Planting Media ABSTRAKBudidaya jamur memiliki prospek yang cerah karena kondisi alam dan lingkungan di Indonesia sangat mendukung. Jerami merupakan media tanam yang umum digunakan untuk pertumbuhan jamur merang. Kardus, kelaras dan sekam merupakan salah satu limbah rumah tangga yang dapat dijadikan sebagai alternatif media tanam jamur merang sebagai pengganti jerami. Penelitian ini berupaya mencari tahu pengaruh kombinasi kardus, kelaras dan sekam padi sebagai media tanam jamur merang serta mengetahui perbandingan kombinasi komposisi media tanam limbah kardus dan kelaras yang dapat memberikan pengaruh terbaik pada pertumbuhan jamur merang.  Penelitian ini dilaksanakan di Desa Rukoh, Banda Aceh pada Bulan Oktober sampai November 2019 selama ± 2 bulan. Penelitian ini menggunakan metode kuantitatif dalam bentuk eksperimen dengan Rancangan Acak Lengkap (RAL) terdiri dari 7 perlakuan dan 4 ulangan. Data dianalisis menggunakan uji lanjut Beda Nyata Terkecil (BNT). Hasil penelitian menunjukkan limbah kardus, kelaras dan sekam berpengaruh  terhadap pertumbuhan jamur merang yang paling baik terhadap berat basah jamur merang serta jumlah tubuh buah adalah pada perlakuan 6 dengan komposisi (kardus 25% + jerami 25% dan sekam 50%) dengan rata-rata berat basah 25,97 gram dan rata-rata jumlah tubuh buah 4,53. Sedangkan pengaruh limbah kardus, kelaras dan sekam berpengaruh  terhadap pertumbuhan jamur merang yang paling baik pertumbuhan ukuran diameter tubuh buah jamur merang yang paling baik pada perlakuan 4dengan kombinasi 50% limbah kardus, 25% kelaras dan 25% sekam padi dengan rata-rata diameter tubuh buah jamur merang adalah 6,57 cm.Kata Kunci: Jamur Merang, Limbah, Kardus, Kelaras, Sekam Padi, Media Tanam
The Effect of a Combination of Cacao Skin and Empty Oil Palm Fruit Bunch Fertilizer to The Growth of Basil (Ocimum Sanctum L.) Arfika Yusti. R Harahap; Supriatno Supriatno; Hafnati Rahmatan; Muhibbuddin Muhibbuddin; Hasanuddin Hasanuddin
Jurnal Ilmiah Mahasiswa Pendidikan Biologi Vol 5, No 1 (2020): FEBRUARI 2020
Publisher : Jurnal Ilmiah Mahasiswa Pendidikan Biologi

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

Abstract

ABSTRACT Cocoa skin and Empty Oil Palm Fruit Bunch (EOPFB) are by-products of the crop which have good nutrient content to be used as compost for basil. Basil is one of the plants used as vegetables and medicine. The purpose was to determine effect of applying cocoa skin fertilizer and EOPFB to the growth of basil and the interaction of the two fertilizers. This research is an experimental study with a quantitative approach and a factorial completely randomized design (CRD) design. The parameters of this study were plant height, number of leaves and number of basil branches. The data obtained were then analyzed using the Variance Analysis test. Based on the results of the study note that the best composition of basil growth cacao skin fertilizer is 125 g and the best EOPFB composition is 125 g. The conclusion of the research shows that the application of cocoa skin fertilizer, EOPFB and the combination of the two fertilizers have an effect on the growth of basil. Keywords: Basil, cacao skin, empty oil palm fruit bunch, fertilizer ABSTRAKKulit kakao dan Tandan Kosong Kelapa Sawit (TKKS) merupakan produk sampingan hasil panen yang memiliki kandungan hara yang baik untuk dijadikan sebagai pupuk kompos untuk kemangi. Kemangi adalah salah satu tanaman yang dijadikan lalapan dan obat. Tujuan dari riset ini untuk mengetahui apakah terdapat pengaruh dari pemberian pupuk kulit kakao dan TKKS terhadap pertumbuhan kemangi dan interaksi dari kedua pupuk tersebut. Riset ini adalah riset eksperimental dengan pendekatan kuantitatif dan desain Rancangan Acak Lengkap (RAL) faktorial. Parameter riset ini  yaitu tinggi tanaman, jumlah daun dan jumlah cabang kemangi. Data yang diperoleh kemudian dianalasis dengan menggunakan uji Analisis Varian. Berdasarkan hasil riset diketahui bahwa komposisi terbaik pupuk kulit kakao pertumbuhan kemangi adalah 125 g dan komposisi TKKS terbaik adalah 125 g. Simpulan riset menunjukkan bahwa pemberian pupuk kulit kakao, TKKS dan kombinasi dari kedua pupuk tersebut memberikan pengaruh terhadap pertumbuhan kemangi. Kata Kunci: Kemangi, kulit kakao, tandan kosong kelapa sawit, pupuk.
Utilization of Video Media Through the Discovery Learnig Model to Increase Learning Outcomes of Students with Respiratory System Materials in SMP N 1 Blangjerango Regency of Gayo Lues Jumiati Jumiati; Hafnati Rahmatan; Safrida Safrida; khairil khairil; Abdullah Abdullah
Jurnal Ilmiah Mahasiswa Pendidikan Biologi Vol 5, No 1 (2020): FEBRUARI 2020
Publisher : Jurnal Ilmiah Mahasiswa Pendidikan Biologi

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

Abstract

Keywords: Discovery Learning, Video Media, Learning Outcomes.         Learners at SMP N 1 Blangjerango that so far in the process of teaching and learning biology, especially the respiration system material still uses conventional learning models, namely the learning process that rarely uses learning media to explain abstract respiration material so that it is difficult to understand and ultimately the learning outcomes do not reach KKM. The purpose of this study, to determine the use of video media through the Discovery Learning model on the respiration system material that can improve the learning outcomes of students of Blangjerango Junior High School 1. The approaches that can be used in this research are quantitative, experimental type and pretest-posttest control group design. The results of data analysis obtained the value of t_ (count) 2.78 and 〖t〗 table 1.72 it can be concluded that there is a significant difference in the results of learning achievement from the learning of the respiratory system in humans, so that the use of video media through the Discovery Learning model can improve student learning outcomes from the material system respiration at SMP N 1 Blangjerango, Gayo Lues Regency. Keywords: Discovery Learning, Video Media, Learning Outcomes.            Learners at SMP N 1 Blangjerango that so far in the process of teaching and learning biology, especially the respiration system material still uses conventional learning models, namely the learning process that rarely uses learning media to explain abstract respiration material so that it is difficult to understand and ultimately the learning outcomes do not reach KKM. The purpose of this study, to determine the use of video media through the Discovery Learning model on the respiration system material that can improve the learning outcomes of students of Blangjerango Junior High School 1. The approaches that can be used in this research are quantitative, experimental type and pretest-posttest control group design. The results of data analysis obtained the value of t_ (count) 2.78 and 〖t〗 table 1.72 it can be concluded that there is a significant difference in the results of learning achievement from the learning of the respiratory system in humans, so that the use of video media through the Discovery Learning model can improve student learning outcomes from the respiration system material at SMP N 1 Blangjerango, Gayo Lues Regency. 
Publict Actions Toward The Saltwater Crocodile Conflict (Crocodylus porosus) With The Human In Kilangan Village Aceh Singkil District Raudhatin Raudhatin; Abdullah Abdullah; Hafnati Rahmatan; Safrida Safrida; Devi Syafrianti
Jurnal Ilmiah Mahasiswa Pendidikan Biologi Vol 5, No 1 (2020): FEBRUARI 2020
Publisher : Jurnal Ilmiah Mahasiswa Pendidikan Biologi

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

Abstract

This study aims to determine the differences in the actions of people who have been exposed to conflicts with communities that have never been exposed to the conflict between the Crocodile and Crocodile shaft with humans. The study was conducted in August 2019. This type of research is a descriptive study with a quantitative approach. Data collection by questionnaire and interview. Data analysis with Chi-squared. Respondents in this study are people who have been exposed to conflicts and who have never been exposed to estuarine crocodile conflicts with humans. The results of this study indicate that there are differences in community actions that have experienced conflicts with those who have never experienced estuarine crocodile conflicts with humans and there are no differences in community actions that have been affected by human-crocodile conflicts in Aceh Singkil Regency in terms of education, sex and ethnicity. The conclusions are (1) There are differences in the actions of the people who have been affected by conflict with those who have never been affected by a crocodile-human conflict in Aceh Singkil District (2) There is no difference in the actions of the people who have been affected by a human-crocodile conflict in Aceh Singkil Regency based on the type of education , gender and ethnicity.Keywords: Action, Conflict, Estuary Crocodile Penelitian ini bertujuan untuk mengetahuii perbedaan tindakan masyarakat yang pernah terkena konflik dengan masyarakat yang tidak pernah terkena konflik Buaya Muara (Crocodylus porosus) dengan Manusia. Penelitian dilakukan di bulan Agustus 2019. Jenis penelitian ini adalah penelitian deskriptif dengan pendekatan kuantitatif. Pengumpulan data dengan angket dan wawancara. Analisis data dengan Chi-kuadrat. Responden dalam penelitian ini adalah masyarakat yang pernah terkena konflik dan yang tidak pernah terkena konflik buaya muara dengan manusia. Hasil penelitian ini menunjukkan bahwa terdapat perbedaan tindakan masyarakat yang pernah mengalami konflik dengan yang tidak pernah mengalami konflik buaya muara dengan manusia dan Tidak terdapat perbedaan tindakan  masyarakat yang pernah terkena konflik buaya-manusia di Kabupaten Aceh Singkil ditinjau berdasarkan jenis pendidikan, jenis kelamin dan suku. Kesimpulannya adalah (1) Terdapat perbedaan tindakan masyarakat yang pernah terkena konflik dengan masyarakat yang tidak pernah terkena konflik buaya-manusia di Kabupaten Aceh Singkil (2) Tidak terdapat perbedaan tindakan  masyarakat yang pernah terkena konflik buaya-manusia di Kabupaten Aceh Singkil ditinjau berdasarkan jenis pendidikan, jenis kelamin dan suku.Kata Kunci: Tindakan, Konflik, Buaya Muara
PENGEMBANGAN MODUL PEMBELAJARAN SISTEM REPRODUKSI BERAZASKAN AL-QURAN/HADIS UNTUK MENINGKATKANMOTIVASI DAN HASIL BELAJAR PESERTA DIDIK Dian Agusti; Hafnati Rahmatan; Sulastri Sulastri
EDUSAINS Vol 11, No 1 (2019): EDUSAINS
Publisher : Faculty of Education and Teacher Training, UIN (State Islamic University) Syarif Hidayatul

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (605.567 KB) | DOI: 10.15408/es.v11i1.10270

Abstract

DEVELOPMENT OF REPRODUCTIVE SYSTEM MODULE WITH AL-QURAN/HADITH TO IMPROVE MOTIVATION AND STUDENT LEARNING OUTCOMESDian Agusti, Hafnati Rahmatan, SulastriUniversitas Syiah Kuala, Aceh, Indonesia uyankdian@gmail.comAbstractThe purpose of this study was to describe the differences in the results and motivation learning of experimental and control class on the subject of the reproductive system by using modules based on the Al-Quran and hadith. This research is a development research using the Borg and Gall models. Learning devices developed modules questions. The results of the feasibility test indicate that the modull of Al-Quran based learning and the hadith developed are included in the very feasible category, with the average score of the feasibility assessment of design validation, the results of the first trial and the results of the second trial of 3.91, 4 54 and 4.83. Data analysis using t test, with sig value <0.05, which means there are significant differences in learning outcomes in the experimental  and  control class. The average score of learning motivation of students at Labuhanhaji 1 Junior and West Labuhanhaji 1 Junior High School are respectively 4.56 and 4.55 which are very well categorized. Based on the results of the study it can be concluded that the learning module based on the Koran and hadith can increase the motivation and learning outcomes of students, especially on reproductive system material. AbstrakTujuan penelitian ini adalah mendeskripsikan perbedaan hasil dan motivasi belajar peserta didik kelas eksperimen dan kontrol pada pokok bahasan sistem reproduksi menggunakan modul berazaskan Al-Quran dan hadis. Penelitian ini merupakan kajian pengembangan menggunakan model Borg dan Gall. Perangkat pembelajaran yang dikembangkan modul. Hasil uji kelayakan menunjukkan bahwa modul pembelajaran  yang dikembangkan termasuk dalam kategori sangat layak, dengan skor rata-rata penilaian kelayakan validasi desain, hasil uji coba I dan hasil uji coba II berturut-turut sebesar 3,91, 4,54 dan 4,83.  Analisis data menggunakan uji t, dengan nilai sig.<0,05 yang berarti terdapat perbedaan yang signifikan terhadap hasil belajar pada kelas eksperimen dan kontrol. Skor rata-rata motivasi belajar peserta didik pada SMPN 1 Labuhanhaji dan SMPN 1 Labuhanhaji Barat berturut-turut  sebesar 4,56 dan 4,55 berkategori sangat baik. Berdasarkan hasil penelitian dapat disimpulkan bahwa modul pembelajaran berazaskan Al-Quran dan hadis dapat meningkatkan motivasi dan hasil belajar peserta didik khususnya pada materi sistem reproduksi. 
PENGEMBANGAN MODEL PEMBELAJARAN PROBLEM BASED INSTRUCTION (PBI) PADA MATERI PENCEMARAN LINGKUNGAN UNTUK MENINGKATKAN TINDAKAN PEDULI TERHADAP LINGKUNGAN DI MADRASAH ALIYAH NEGERI DARUSSALAM KABUPATEN ACEH BESAR Ruslaini ,; Djufri ,; Hafnati Rahmatan
Biotik Vol 3, No 1 (2015): JURNAL BIOTIK
Publisher : Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/biotik.v3i1.988

Abstract

Care is one of the results of the attention of an event or a learning process that occurs naturally. Concern for the environment is expressed in the form of verbal action. This study aims to improve the action of caring for the environment through the implementation of problem based learning model on the material of environmental pollution . This study was a descriptive study. The instrument used in this study was enclosed questionnaire with Likert scale that consisted of 20 questions, including 13 positive questions and 7 negative questions to improve the concerned action to the environment.The results of action caringconcerned about the environment, it was found thatthere was 70% of positive statement with strongly agree category, 68% of negative statement catagorized as strongly disagree. Thus, it can be concluded that the development of PBI model on the topic of environmental pollution could improve the action concerned to the environment.
Penggunaan Media Camtasia Studio Berbantuan Handout untuk Meningkatkan Pemahaman Konsep Siswa pada Konsep Sistem Ekskresi di SMA Negeri 12 Banda Aceh Dewi Mutia Maidani; Khairil Khairil; Hafnati Rahmatan
Biotik Vol 4, No 1 (2016): JURNAL BIOTIK
Publisher : Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/biotik.v4i1.1073

Abstract

Camtasia studio media assisted handout is one of the learning resource that can be used by student as a substitute for textbook. The aim of this study was to find out students’ concept mastery of those who were taught by using camtasia studio media assisted handout and those who were taught by using conventional learning in the concept of excretion system. This study used experimental research that was implemented in SMA N 12 Banda Aceh in academic year 2014/2015. The subject of this study was 40 students, they were 20 students of IX IPA-2 and 20 students of IX IPA-3. The sample of study was 40 students, 20 students were chosen as the experimental group and 20 students as the control one. The data of students learning outcomes were taken from pretest and postest results. The N-Gain data of students’ learning outcomes were analyzed by using independent simple test and Kolmogorov-Smirnov test. There were three results of this study namely: the understanding of concept students was differed significantly between the students that taught by using Camtasia studio media assisted handout and the students taught conventionally with the value p = 0.000 < 0.05. It can be concluded that there was a significant differences in students’ concepts mastery between those who used Camtasia studio media assisted handout as the source of learning and those who received conventional learning in the concept of excretion system.
Pemanfaatan Media Pembelajaran Berbasis Internet pada Konsep Sistem Peredaran Darah Terhadap Hasil Belajar Kognitif Siswa pada SMA Negeri 1 Woyla Taufik Hidayat; Hafnati Rahmatan; Khairil Khairil
Biotik Vol 4, No 1 (2016): JURNAL BIOTIK
Publisher : Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/biotik.v4i1.1065

Abstract

Internet based – learning media is one of the learning sources that can be used to replace the text book. This research was aimed to find out the difference of learning result of students who utilized internet based – learning media as the sources of learning compare to the students who used conventional learning method on the topic of blood circulatory system. An experimental research had been conducted at SMAN 1 Woyla in the school year of 2014/2015. The population of this research was 60 students, which were 30 students of XII IPA 1 and 30 students of XII IPA 2 class. The entire population was chosen as the samples of the research which were 30 students for experimental class and 30 students for control class. The data were collected by using pre-test and post-test. The data were analyzed by using independent sample t-tes or Mann Whitney test. The results showed that: (1) the N-Gain mean value of experimental class was 60 which was categorized as medium and for the control was 20 which was categorized as low, (2) the learning result was significantly different between the students who used internet based – learning media and the students who were taught conventionally on the topic of blood circulatory system with P value of 0,000 < 0,05. It can be summarized that there was a significant difference of learning result of students who used internet based – learning media with the students who used conventional learning method especially on the topic of blood circulatory system.
Ethnoscience-Based Student Worksheet Development to Improve Senior High School Student Creativity Dika Tri Andani; Abdul Gani; Andi Ulfa Tenri Pada; Hafnati Rahmatan
Jurnal Penelitian Pendidikan IPA Vol. 7 No. 1 (2021): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v7i1.457

Abstract

Teaching materials that link the material with the surrounding life to foster an entrepreneurial spirit and creative thinking. One proof of its relevance is using plants as natural developers in making pancakes. The purpose of this study was to develop ethnoscience-based worksheets to determine the feasibility and creativity of students. The method used in this research is development research (R&D) using the ADDIE model. The population for this study was students of class XII IA Senior High School 2 Unggul Ali Hasjmy. The sample was selected purposively, namely 28 students. Data were collected using validation tests and creativity observation sheets. The results showed that the development of worksheets was very feasible to use with the percentage of 85.20 given by the validator. Validation of the creativity observation sheet states that 25 of the 26 items are feasible to use. Student creativity also increased with a percentage of the high category 89.00. Ethnoscience-based worksheets to increase student creativity are feasible to be used as teaching material.
: Khairunnisa Khairunnisa; Abdullah Abdullah; Khairil Khairil; Hafnati Rahmatan
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 1 (2022): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i1.1154

Abstract

This study aims to determine the application of the problem-based learning model combined with flashcard media has an effect on students' creative thinking skills. The method used in this research is a quasi-experimental method. This research was conducted in two Madrasah Aliyah, Banda Aceh City, Aceh, Indonesia. The research was conducted in the even semester of the 2019/2020 Academic Year. The research sample was taken by purposive sampling as many as 126 students, namely the experimental group 63 and the control group 63. The parameters measured in the study were students' creative thinking skills. Creative thinking skills data were analyzed using quantitative descriptive by converting ordinal data into intervals through interval successive method (ISM) and ANCOVA test. The results showed that there was an effect of students' creative thinking skills using a problem-based learning model combined with flashcard media. The conclusion of this study is that the application of the problem-based learning model combined with flashcard media has an effect on students' creative thinking skills on Environmental Pollution material in MAN 1 and MAN 2 Banda Aceh City
Co-Authors A Halim Abdullah Abdullah Abdullah Abdullah Aida safriani Ali Sarong Ananda, Yuli Andayani, Dewi Andi Ulfa Tenri Pada Annisa Mulia Rosha Arfika Yusti. R Harahap Asiah Asiah Azhar Azhar Bungaran, Satria Chan, Kristina Merencillo Citra Yolantia Cut Nurmaliah Cut Rahma Diana Devi Syafrianti Deviani, Rini Dewi Mutia Maidani Dian Agusti Diana, Cut Rahma Dika Tri Andani Dini, Arina Djufri Djufri - Elisa Elisa Fadwa, Frida Fitria, Humairah Gani, Abdul Hasanuddin Hasanuddin Hasanuddin Hasanuddin Hasanuddin Hasanuddin Humaira, Siti Ismul Huda Iswadi Iswadi Jumiati Jumiati Khairil Khairil Khairil Khairil Khairil Khairil Khairil Khairil Khairil Khairil Khairunnisa Khairunnisa Linda Linda Luh Putu Ratna Sundari Maqfirah Maqfirah, Maqfirah Maulida, Maulida Maulinda, Maulinda Maulita Anggraini* Mudatsir Mudatsir Mudatsir Muhammad Syukri Muhammad Syukri Muhibbuddin Muhibbuddin Muhibbuddin Muhibbudin Mumtazah, Tasha Nabila Rizka Anisa Nevi Geubrina Utama Nir Fathiya Nisa, Husnul Nur, Yaumil Istiqlal M. Nursafiah, Nursafiah Nuruzzakiah Nuruzzakiah Oktavianda, Nanda Rachmawati Rachmawati Rahmat Putra Raisah, Putri Ramsyiah Ramsyiah Ratna, Lina Raudhatin Raudhatin Rini Safitri Riska Riska riza ulhaq Rizki, Meisy Adha Ruslaini , Safirda, Farza Safrida Safrida , Safrida Safrida Safrida Safrida Safrida Samingan Samingan Samingan Saputri, Mawarni Shahali, Edi Hafizan Mohd Simah Bengi Sulastri Sulastri Sulastri*, Sulastri Supriatno Supriatno Supriatno Susianti Susianti Taufik Hidayat Tuti Marjan Fuadi Ulhusna, Fitra Asma Ulhusna, Fitrah Asma Wahyuni, Agus Wardiah Wardiah Winnugroho Wiratman, Manfaluthy Hakim, Tiara Aninditha, Aru W. Sudoyo, Joedo Prihartono Wiwit Artika Yusrizal Yusrizal Yusrizal Yusrizal Zulhamdi Zulhamdi