Wahyuni, L.; Mangunatmadja, I.; Kaban, R.; Rachmawati, E.; Harini, M.; Laksmitasari, B.; Geraldyne, A.; Sangwidjojo, I.; Utami, D.; Poernomo, V.; Sudjono, A. Non-Nutritive Sucking Milestones of Preterm Infants in Indonesia: A Descriptive Study. PI 2022, 62, 311-7.