Pengaruh Promkes Melalui Aplikasi Whatsapp Terhadap Tingkat Kecemasan Remaja Di Masa Pandemi Covid-19. woph [Internet]. 2023 Feb. 28 [cited 2025 Jul. 1];4(1):103-1. Available from: http://103.133.36.91/index.php/woph/article/view/554