JOHN J. COE. Nota Penyelidikan/ Research Notes. Kajian Malaysia, [S. l.], v. 6, n. 2, p. 86–114, 1988. DOI: 10.21315/. Disponível em: https://ejournal.usm.my/km/article/view/km_vol6-no-2-1988_5.. Acesso em: 2 oct. 2026.