Chakorn, T., J. Roongruangchai, K. Pilakasiri, and C. Pilakasiri. “The Development of Rabbit Embryo’s Heart : Serial Sections of 4-14 mm Rabbit Embryos Compared to a 10 mm Pig Embryo”. Siriraj Medical Journal, vol. 55, no. 4, Apr. 2003, pp. 226-33, https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/245397.