Amaliah, Ana, Indah Norma Triana, Poedji Hastutiek, Setiawan Koesdarto, Lucia Tri Suwanti, and Soeharsono Soeharsono. 2019. “The Prevalance and Helminth Infection Degree of Gastrointestinal in Layer Duck Located in Keper and Markolak Kramat Village District of Bangkalan Regency of Bangkalan”. Journal of Parasite Science 2 (1):1-4. https://doi.org/10.20473/jops.v2i1.16376.