Khurrohmah, M., Y. Liestyana, and T. Wahyuningsih. “Social Capital, Knowledge Sharing, Innovation, and Performance of Coffee Producer SMEs in Purworejo, Central Java”. Jurnal Ilmiah Manajemen Kesatuan, vol. 10, no. 3, Nov. 2022, pp. 471-82, doi:10.37641/jimkes.v10i3.1469.