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. JPK : Jurnal Proteksi Kesehatan, [S. l.], v. 9, n. 2, p. 48–53, 2022. Disponível em: https://jurnal.pkr.ac.id/JPK/article/view/707. Acesso em: 18 jan. 2026.