All articles in this issue include authors from one universities in INDONESIA (Department of Medical Electronics Technology, Poltekkes Kemenkes Surabaya;Department of Environmental Health, Poltekkes Kemenkes Surabaya; Department of Medical Laboratory Technology, Poltekkes Kemenkes Surabaya, Surabaya) and five universities from other countries (Faculty of Science and Technology,The ICFAI University, Raipur, INDIA; Alochistan University of Information Technology Engineering and Management Sciences: Quetta, Balochistan, PAKISTAN; Department of Computer Engineering, Government Engineering College, Dahod, INDIA; University of Health Sciences, Lahore, INDIA; University of Douala, Douala, CAMEROON; )