A. W. W. Saputra, S. Sugiarto, D. Widhiyanuriyawan, L. Setyono, and A. B. Nugroho, “Penerapan Teknologi Tepat Guna dalam Peningkatan Produksi Kopi Wilis di BUMDesa Barokah Desa Ngebel, Kabupaten Ponorogo, Jawa Timur: The Application of Appropriate Technology in Improving the Coffee Production of Wilis Coffee at BUMDesa Barokah, Ngebel Village, Ponorogo Regency, East Java”, Pengabdianmu J Ilmiah Pengabdian Masyarakat, vol. 10, no. 8, pp. 1944–1952, Aug. 2025.