Febrimeli, D. ., Siregar, A. Z., & Laia, T. J. (2022). Adopstion Of Farmers In The Use Of Two- Wheeled Tractors In Rice Field Cultivasion In Gomo Sub-District South Nias Districct North Sumatera Utara Province. Jurnal Sosial Ekonomi Pertanian, 18(2), 117-128. https://doi.org/10.20956/jsep.v18i2.15010