Enus, Enderika, et al. “Control Agents Of Environmentally Friendly Plant Disordering Organisms (Opt) Used Vegetable Farmers In Tomohon City”. Jurnal Agroekoteknologi Terapan, vol. 3, no. 2, Aug. 2022, pp. 188-97, doi:10.35791/jat.v3i2.38267.