Robert Tua Siregar; Sukarman Purba; Nurmiati Nurmiati; Mustar Mustar; Arce Yulita Ferdinandus; Susana MW Muskita; Hengki Mangiring Parulian Simarmata; Marisi Butarbutar; Hasdiana S, “Manajemen Bisnis,” Yayasan Kita Menulis, 2023.