Hasibuan, Ika Fitria, et al. “Status Kualitas Air Dan Kesuburan Perairan Waduk PLTA Koto Panjang, Provinsi Riau”. Jurnal Ilmu Pertanian Indonesia, vol. 22, no. 3, Jan. 2018, pp. 147-55, https://doi.org/10.18343/jipi.22.3.147.