THE IMPLICATION OF ASSERTIVE UTTERANCE FOR PERSONALITY DEVELOPMENT AND LANGUAGE USE Tiara Resta Putri, Sutarman, Agus Syahid, Titik Ceriyani Miswaty, Syamsurrijal Jurnal Bastra (Bahasa dan Sastra) Vol. 10 No. 4 2024 DOI 10.36709/bastra.v10i4.1544