All articles in this issue include authors from 3 universities in INDONESIA(Department of Medical Laboratory Technology Poltekkes Kemenkes Surabaya; Department of Medical Electronics Technology, Poltekkes Kemenkes Surabaya) and universities from other countries (Sikkim Manipal University, Tadong, Gangtok, Sikkim, INDIA; University of Kalyani, Kalyani, Nadia, West Bengal, INDIA; Department of Biochemistry, Sokoto State University, Sokoto, NIGERIA; Department of Biology, Shehu Shagari College of Education, Sokoto, NIGERIA; Sultan Abdulrahman College of Health Technology Gwadabawa, Sokoto State NIGERIA; Faculty of Integrated Technologies, Universiti Brunei Darussalam, BRUNEI DARUSSALAM; IIMT College of Engineering, Greater Noida, INDIA; Department of Electronics & Communication Engineering, Institute of Technology & Management, Gorakhpur, INDIA; Mohaghegh Ardabili University, Ardabili, IRAN).