D. G. Teixeira, M. de F. Martins, J. L. Guerra, and M. A. Miglino, ‚ÄúStatistical considerations about the metric values of the corporeal segments of the reproductive system of escargots of the species Achatina fulica and Achatina monochromatica‚ÄĚ, Braz. J. Vet. Res. Anim. Sci., vol. 43, no. 4, pp. 481-488, Aug. 2006.