LUTHFIYYAH, Roghibatul. Lesson Study as a Platform for Engaging Speaking Lecturers in Doing Teacher Professional Development. Academic Journal Perspective : Education, Language, and Literature, [S. l.], v. 2, n. 2, p. 244–256, 2018. DOI: 10.33603/perspective.v2i2.1627. Disponível em: https://jurnal.ugj.ac.id/index.php/Perspective/article/view/1627. Acesso em: 23 jul. 2025.