V. Nangoy, Reginald, Bernard Sandjaja, Hasmi Hasmi, and A. L. Rantetampang. 2017. “Factors Connected With Immunization Coverage in Obaa Sub District of Mappi District”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 34 (3):193-211. https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/7771.