K. Khairani, R. Yulida, and J. Yusri, “ANALISIS USAHATANI NENAS DI DESA KUALU NENAS KECAMATAN TAMBANG KABUPATEN KAMPAR ANALYSIS OF PINEAPPLE FARMING IN KUALU NENAS VILLAGE SUB-DISTRICT OF TAMBANG KAMPAR REGENCY”, J. Ilm. Pertan., vol. 11, no. 2, pp. 9-18, Feb. 2015.