RISIKO SISTEMATIS, FAKTOR INTERNAL DAN EKSTERNAL PERUSAHAAN TERAHADAP RETURN SAHAM. Jurnal Analisis Bisnis Ekonomi, [S. l.], v. 13, n. 1, p. 55–65, 2015. Disponível em: https://coba.unimma.ac.id/bisnisekonomi/article/view/134. Acesso em: 30 sep. 2026.