FAUZAN, Irma Amalia; JAMALUDDIN, Jamaluddin; ZAINUDDIN, Zainuddin. PENINGKATAN HASIL BELAJAR KORESPONDENSI MELALUI MODEL PROBLEM BASED LEARNING DI SMKS BUDI ASIH. Jurnal Riset dan Inovasi Pembelajaran, [S. l.], v. 2, n. 2, p. 56–64, 2022. DOI: 10.51574/jrip.v2i2.217. Disponível em: https://www.etdci.org/journal/jrip/article/view/217. Acesso em: 7 jul. 2025.