Sugara, Aga, Dewi Kurniati, and Anita Suharyani. 2021. “Efisiensi Alokatif Usahatani Jeruk Siam Di Kabupaten Sambas”. Journal Galung Tropika 10 (2):156-64. https://doi.org/10.31850/jgt.v10i2.707.