The Indonesian Journal of Science and Technology (IJoST) (ISSN: e.2527-8045 p.2528-1410) is an open access and peer-reviewed journal, published by Universitas Pendidikan Indonesia, which is a dissemination from research results from scientists and engineers in many fields of science and technology. In 2016-2020, IJoST is issued on April and September. Since 2020, IJoST issues 3 times a year (April, September, and December).