Bonatelli, M., Machado, M. R. F., Cruz, C. and Miglino, M. A. (2001) “Morphological analysis of the placenta of paca (Agouti paca L., 1766): Study with light microscopy and transmission electron microscopy”, Brazilian Journal of Veterinary Research and Animal Science, 38(5), pp. 224-228. doi: 10.1590/S1413-95962001000500005.