All articles in this issue include authors from four universities in INDONESIA (Department of Medical Electronics Technology, Poltekkes Kemenkes Surabaya; Master Study Program Knowledge Nursing, Faculty of Nursing, University of North Sumatera, Medan; Poltekkes Kemenkes Tanjung Karang, Tanjung Karang, Medan; Department of Medical Laboratory Technology, Health Polytechnic of Jambi, Jambi) and four universities from other countries (Al-hikma University, Baghdad, IRAQ; Azerbaijan State Oil and Industry University, AZERBAIJAN; University Malaysia Sarawak UNIMAS, Sarawak, MALAYSIA;  Faculty of Information Technology, Angiang University, VIETNAM; Bonab Islamic Azad university, Bonab, IRAN)