Ningrum, Ricka Ayu Virga, and Trini Sudiarti. “Penggunaan Aplikasi WhatsApp Untuk Meningkatkan Pengetahuan 1000 HPK Ibu Hamil Pada Masa Pandemi COVID-19 Di Kecamatan Ciomas Kabupaten Bogor : The Use of WhatsApp Application to Increase the Knowledge of the First 1000 Early Days of Life for Pregnant Women During the COVID-19 Pandemic at Ciomas District, Bogor Regency”. Media Publikasi Promosi Kesehatan Indonesia (MPPKI) 7, no. 1 (January 3, 2024): 217-224. Accessed November 22, 2024. https://jurnal.unismuhpalu.ac.id/index.php/MPPKI/article/view/4266.