Retnowati, Daru, et al. “Analisis Usaha Pengolahan Tembakau Aspen Di Desa Wonosari Kecamatan Trucuk Kabupaten Klaten”. Jurnal Dinamika Sosial Ekonomi, vol. 10, no. 1, Aug. 2021, pp. 13-18, https://jurnal.upnyk.ac.id/index.php/jdse/article/view/4990.