Preface

On behalf of the Steering Committee, I have the pleasure of welcoming you to the webinar SEMIRATA 2020 on The 4th International Conference on Mathematics, Science, Education and Technology (ICOMSET) in conjunction with The 2nd International Conference on Biology, Science and Education (ICoBioSE)”, which was held at September 19th, 2020 in Universitas Negeri Padang, Padang, West Sumatra, Indonesia. This Webinar is organized by Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang. The main objective of this conference is to provide a platform for academics, researchers, professionals practitioners, observers, teachers and students to present their current research in natural sciences and education. In addition, it also aims to discuss strategic issues in related fields. The theme of the conference is “Strengthening Mathematics and Natural Sciences research towards eco-sustainable development”. I would like to express my sincere appreciation to all the participants, financial sponsors, exhibitors, supporting organizations and all the committee members who has made the webinar SEMIRATA 2020 succeed. With these strong support, we are sure the SEMIRATA 2020 will be beneficial to all the participants. Finally, I would like to thank the members of reviewers for their kind assistance in reviewing the papers. Dr. Rijal Satria General Chair List of ORGANIZING COMMITTEE are available in this pdf.