Sherly, Sherly, AND 		Dharma, Edy.
" PENGARUH PENGAWASAN TERHADAP KINERJA KARYAWAN PADA PT BAKRIE SUMATERA PLANTATION, Tbk SERBANGAN ESTATE, KISARAN" <em>JURNAL ILMIAH SOCIO SECRETUM</em> [Online], Volume 9 Number 2 (21 February 2020)