Arba’in M, Himmayati IM, Hastuti D, Nosita D, Triyoko H. Exploring Grammatical Structure: A Corpus Analysis on the Use of “To Be” in Vocational Students’ WhatsApp Group Conversations using AntConc. ideguru [Internet]. 2025Jan.20 [cited 2025Mar.14];10(1):806-1. Available from: https://jurnal-dikpora.jogjaprov.go.id/index.php/jurnalideguru/article/view/1505