Eliza, E., Tety, E. and Putra, Y. (2019) “Analisis Pendapatan Usahatani Keladi di Kepenghuluan Darussalam Kecamatan Sinaboi Kabupaten Rokan Hilir”, Unri Conference Series: Agriculture and Food Security, 1, pp. 26-33. doi: 10.31258/unricsagr.1a4.