MUSDALIFAH, Musdalifah. Teachers’ Perceptions and the Effectiveness of Syllabus Use and Lesson Plan Implementation Through Collaborative Planning . ETDC: Indonesian Journal of Research and Educational Review , [S. l.], v. 4, n. 3, p. 686–695, 2025. DOI: 10.51574/ijrer.v4i3.3140. Disponível em: https://etdci.org/journal/ijrer/article/view/3140. Acesso em: 24 aug. 2025.