Yudhani, Ratih Dewi, Yuliana Heri Suselo, Dwi Rahayu, Jatu Aphridasari, and Hartono Hartono. “The Effects of Zingiber Officinale and Propolis Supplementation on Hospitalized Covid-19 Patients’ Oxygen Saturation”. Indonesian Journal of Pharmacy 34, no. 3 (September 4, 2023): 499–509. Accessed November 24, 2024. https://journal.ugm.ac.id/v3/IJP/article/view/3544.