Azizah, Sheila Nur, Megawati Simanjuntak, and Istiqlaliyah Muflikhati. 2022. “CONSUMER COMPLAINT BEHAVIOUR IN INDONESIA: ROLE OF KNOWLEDGE AND SELF-CONFIDENCE ”. Jurnal Ilmu Keluarga & Konsumen 15 (1), 90-101. https://doi.org/10.24156/jikk.2022.15.1.90.