Rafian, T., Yurnalis, Y., Fenita, Y. and Iskandarsyah , R. 2022. Polymorphism of Prolactin Gene (PRL/PstI) In Sikumbang Jonti Duck Using PCR-RFLP Methods. Jurnal Sain Peternakan Indonesia. 17, 3 (Sep. 2022), 170–174. DOI:https://doi.org/10.31186/jspi.id.17.3.170-174.