A. S. Hasibuan, Hasni Yaturramadhan, Anto J. Hadi, and Haslinah Ahmad, “Pemanfaatan Pelayanan Puskesmas dalam Pencegahan Covid-19 di Puskesmas Batunadua Kota Padangsidimpuan : Utilization of Health Center Services in Preventing Covid-19 at Batunadua Health Center Padangsidimpuan City”, Media Publ. Promosi Kesehat. Indones, vol. 4, no. 4, pp. 475-481, Nov. 2021.