Gunawan, Elsye, and Eva Susanty Simaremare. “Formulasi Sirup Antimalaria Ekstrak Kulit Batang Kayu Susu (Alstonia Scholaris (L.) R. Br.)”. PHARMACY: Jurnal Farmasi Indonesia (Pharmaceutical Journal of Indonesia), vol. 13, no. 1, July 2016, pp. 1-9, http://jurnalnasional.ump.ac.id/index.php/PHARMACY/article/view/884.