Mahardhika, Mustafidah. “A Step by Step Analisis Regresi Linier Berganda : Pada Bidang Manajemen Bisnis”. Penerbit Abimantrana Dibyacita (January 6, 2025). Accessed September 11, 2025. https://book.abimantranadibyacita.id/index.php/b/article/view/7.