Wahyuningsih, Titik, 		Pudjiastuti, Agnes Quartina, DAN 		Sumarno, Sumarno.
" Production Factors Efficiency Of Potato Farming In Tosari Village" <em>SOCA: Jurnal Sosial Ekonomi Pertanian</em> [Online], Volume 14 Nomor 3 (27 June 2020)