HARAHAP, Evi Syuriani; RUMAPEA, Dinda; SINULINGGA, Wulan Pertiwi Br; AMANDA, Angelica Try; LESTARI, Putri. Analisis Praktik Diskriminasi Harga Tiket Kereta Api oleh PT KAI dalam Struktur Pasar Monopoli di Indonesia . RIGGS: Journal of Artificial Intelligence and Digital Business, [S. l.], v. 5, n. 1, p. 11294–11302, 2026. DOI: 10.31004/riggs.v5i1.7586. Disponível em: https://journal.ilmudata.co.id/index.php/RIGGS/article/view/7586. Acesso em: 22 jun. 2026.