Lubis, Tona Aurora, Ade Octavia, and Widyanti Fitri. “Rating of LQ-45 Stock Index Performance Credibility in Indonesia Stock Exchange”. Jurnal Perspektif Pembiayaan dan Pembangunan Daerah 6, no. 5 (May 2, 2019): 595 - 602. Accessed July 5, 2024. https://online-journal.unja.ac.id/JES/article/view/6707.