https://www.researchprojecttopics.com/2018/08/03/gonadal-extragonadal-sperm-reserves-yankasa-rams-experimentally-infected-fasciola-gigantica-zaria-nigeria/
GONADAL AND EXTRAGONADAL SPERM RESERVES OF YANKASA RAMS EXPERIMENTALLY INFECTED WITH FASCIOLA GIGANTICA IN ZARIA, NIGERIA