A. N. I. Adriana, F. Firmansyah, and M. T. . Duppa, “Utilization of Melon Skin Waste (Cucumis Melo L.) in Syrup Preparations as an Immunostimulant to Prevent Covid-19”, midwifery, vol. 10, no. 4, pp. 3213–3218, Oct. 2022.