ROIKESTINA SILABAN; FAIJA SIHOMBING; LIDIA SILABAN. Metodologi Penelitian. Yayasan Drestanta Pelita Indonesia, [S. l.], 2024. Disponível em: https://publisher.yayasandpi.or.id/index.php/dpipress/article/view/1628. Acesso em: 5 nov. 2024.