HARRYS CRISTIAN VIERI; MUJAHID WIDIAN SARAGIH. Menyebarkan Kebaikan lewat Konsep “Pay it Foward” dalam Kegiatan Pembelajaran. ABDISOSHUM: Jurnal Pengabdian Masyarakat Bidang Sosial dan Humaniora, [S. l.], v. 2, n. 4, p. 409–413, 2023. DOI: 10.55123/abdisoshum.v2i4.2109. Disponível em: https://journal.literasisains.id/index.php/abdisoshum/article/view/2109. Acesso em: 8 feb. 2026.