Lumbantoruan, M., A. Sirait, and N. B. Brahmana. “Edukasi Teman Sebaya Dalam Peningkatan Breastfeeding Self Efficacy (BSE) Di Klinik Lmt Siregar”. Jurnal Abdimas Mutiara, vol. 4, no. 1, Feb. 2023, pp. 172-5, https://e-journal.sari-mutiara.ac.id/index.php/JAM/article/view/3754.