INNSUSANTY, ENNY, and AZWIN AZWIN. 2013. “STRATEGI PENGELOLAAN TAMAN HUTAN RAYA SULTAN SYARIF HASYIM PEKANBARU”. Jurnal Ilmiah Pertanian 10 (2), 56-67. https://doi.org/10.31849/jip.v10i2.1343.