Wahidah, Nurul, Endang Sutisna Sulaeman, and Uki Retno Setia Budihastuti. 2018. “Determinants of Midwife Performance in Lactation Management in Surakarta and Karanganyar, Central Java”. Journal of Health Policy and Management 3 (1):26-33. http://www.thejhpm.com/index.php/thejhpm/article/view/51.