“Description of Ownership of the MCH Handbook and Utilization of the MCH Handbook and the Nutritional Status of Toddlers in Pekanbaru City and Meranti District During the COVID-19 Pandemic”. JURNAL PROTEKSI KESEHATAN 9, no. 2 (Desember 1, 2022): 48–53. Diakses Januari 18, 2026. https://jurnal.pkr.ac.id/JPK/article/view/707.