“Pendampingan Promosi Usaha Petani Sari Apel Di Desa Nongko Jajar Melalui Pemanfaatan Sosial Media Marketplace Online”. Soeropati, vol. 1, no. 2, May 2019, pp. 135-54, https://jurnal.yudharta.ac.id/v2/index.php/soeropati/article/view/2144.