Andriani, R., B. Supriyatno, A. Kekalih, and D. Sjarif. “Development, Validity, and Reliability of a Questionnaire on Mothers’ Knowledge in Complementary Feeding Practices (PI-MPASI) in Indonesia”. Paediatrica Indonesiana, Vol. 63, no. 5, Oct. 2023, pp. 335-45, doi:10.14238/pi63.5.2023.335-45.