Soedirham, Oedojo, and Siti Patonah. 2015. “Analyzing Program Planning and Complications Prevention of Childbirth (P4k) in the Context of Social Capital”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 22 (2):16-26. https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/3928.