Anisah Hasibuan, and Seprini. “PENGARUH LEADER MEMBER EXCHANGE DAN SELF EFFICACY KARYAWAN TERHADAP EMPLOYEE VOICE BEHAVIO DI PD. BPR ROKAN HULU”. Hirarki : Jurnal Ilmiah Manajemen Dan Bisnis, vol. 2, no. 3, Oct. 2020, pp. 72-80, https://journal.upp.ac.id/index.php/Hirarki/article/view/686.