Wattana Weerachatyanukul. 1993. Morphological studies of ovarian development and its seasonal changes in Rana tigerina. Faculty of Graduate Studies, Mahidol University;
Wattana Weerachatyanukul. (1993) Morphological studies of ovarian development and its seasonal changes in Rana tigerina . Mahidol University/Bangkok.
Wattana Weerachatyanukul. Morphological studies of ovarian development and its seasonal changes in Rana tigerina. . Bangkok:Mahidol University, 1993.
Wattana Weerachatyanukul. (1993) Morphological studies of ovarian development and its seasonal changes in Rana tigerina . Mahidol University/Bangkok.