D. R. Sari, Y. Herawati, and U. Sabarudin, “The Effectiveness of Giving A Combination of Ginger and Papaya Powder Drink in Reducing the Frequency of Nausea and Vomiting in Pregnant Women 12-16 Weeks”, IJGHR, vol. 8, no. 1, pp. 1017–1024, Feb. 2026.