[1]
Elinur, E., Heriyanto, H. and Saputra, J. 2019. Optimasi Produksi Usahatani Karet di Kecamatan Tapung Hulu Kabupaten Kampar. Unri Conference Series: Agriculture and Food Security. 1, (Jan. 2019), 15-25. DOI:https://doi.org/10.31258/unricsagr.1a3.