N. . Triani, E. . Syafriani, and M. U. A. . Somala, “Counseling on How to Make and Apply Organic Fertilizers in Jabung Village, Ponorogo Regency ”, Nusantara Sci. Tech. Proc., pp. 257–262, May 2021, doi: 10.11594/nstp.2021.0940.