Widyaningsih, F., Rimayanti, R., Koesdarto, S., Suwanti, L.T. and Sunarso, A. 2019. Prevalence of Protozoa in Gastrointestinal Tract of Pigeons (Columba livia) Maintenance Ekstensif and Intensif in Surabaya. Journal of Parasite Science. 2, 2 (Dec. 2019), 71–76. DOI:https://doi.org/10.20473/jops.v2i2.16405.