WILLIAM, Otniel; CHRISTIAN, Samuel. PENGARUH HARGA MINYAK KELAPA SAWIT DAN BATU BARA TERHADAP RETURN INDEKS HARGA SAHAM GABUNGAN. Jurnal Logic: Logistics & Supply Chain Center, [S. l.], v. 1, n. 2, p. 67–72, 2023. DOI: 10.33197/logic.v1i2.967. Disponível em: https://journal.widyatama.ac.id/index.php/logic/article/view/967. Acesso em: 3 aug. 2025.