Wahdaningsih, S., S. Wahyuono, S. Riyanto, and R. Murwanti. “In Vitro Test of Macrophage Phagocytic Activity of Extracts and Fractions of Red Dragon Fruit Peel [Hylocereus Polyrhizus (F.A.C.Weber) Britton and Rose]”. Dhaka University Journal of Pharmaceutical Sciences, vol. 17, no. 2, Dec. 2018, pp. 161-5, doi:10.3329/dujps.v17i2.39171.