SUDIRMAN , Sudirman. The Effectiveness Of Using Greeting Cards Toward Students’ Speaking Skill In Relation To Grammatical Awareness . Jurnal Pendidikan Tambusai, [S. l.], v. 6, n. 2, p. 14309–14312, 2022. DOI: 10.31004/jptam.v6i2.4699. Disponível em: http://jptam.org/index.php/jptam/article/view/4699. Acesso em: 9 jan. 2025.