Hasanah, N., S. M. Utami, I. T. Fu’adah, D. R. Pomalingo, B. M. Satria, P. Santoso, S. M. Tulandi, and A. I. Ismail. “Comparison of Indonesian Herbal Drinks Empon-Empon and Wedang Pokak for Vitamin C Content and Antioxidant Activity”. Jurnal Kefarmasian Indonesia, vol. 15, no. 2, Dec. 2025, pp. 130-9, https://jkefarind.com/index.php/jki/article/view/6685.