MUHARTOYO, Muhartoyo. Indtroduction To Research Methodologies In Language Studies. Lingua Cultura, [S. l.], v. 1, n. 1, p. 11–18, 2007. DOI: 10.21512/lc.v1i1.257. Disponível em: https://journal.binus.ac.id/index.php/Lingua/article/view/257. Acesso em: 20 aug. 2025.