Cazzaniga، N. J. (2002). "Old species and new concepts in the taxonomy of Pomacea (Gastropoda: Ampullariidae)". Biocell. ج. 26 ع. 1: 71–81. PMID:12058383. PDF
Cazzaniga، N. J. (2002). "Old species and new concepts in the taxonomy of Pomacea (Gastropoda: Ampullariidae)". Biocell. ج. 26 ع. 1: 71–81. PMID:12058383. PDF