Andriaty, Etty, et al. “ANALISIS PENILAIAN ANGKA KREDIT PUSTAKAWAN LINGKUP KEMENTERIAN PERTANIAN”. Jurnal Perpustakaan Pertanian, vol. 25, no. 2, Sept. 2017, pp. 45-54, doi:10.21082/jpp.v25n2.2016.p45-54.