AriyantoA., SyaukatY., HartoyoS., and SinagaB. M. “TECHNOLOGY ADOPTION AND TECHNICAL EFFICIENCY OF OIL PALM SMALLHOLDER PLANTATION IN RIAU AND WEST KALIMANTAN”. Jurnal Manajemen Dan Agribisnis, Vol. 17, no. 3, Nov. 2020, p. 239, doi:10.17358/jma.17.3.239.