Hasibuan, R. and Ginting, N.A.R. 2023. Hambatan terhadap Imunisasi Anak: Studi Kualitatif di Salah Satu Posyandu Kota Medan: Why Children are Not Brought in for Immunization: A Qualitative Investigation at Posyandu in Medan. Media Publikasi Promosi Kesehatan Indonesia (MPPKI). 6, 12 (Dec. 2023), 2478-2487. DOI:https://doi.org/10.56338/mppki.v6i12.4161.