* Druce George C., The Symbolism of the Crocodile in the Middle Ages, in The Archaeological Journal, 66, 1909, pp. 311-338.

* Daston Lorraine, Park Katharine, Wonders and the Order of Nature, 1150-1750, New York, 1998, p. 273.

* Lippincott Louise W., The Unnatural History of Dragons. Philadelphia Museum of Art Bulletin, 77(1981), pp. 2-24.

* Spennemann Dirk H. R., Matthaus Merian’s Crocodile in Japan. Script & Print, 43, 4, 2019, pp. 201-223.

* Weinreich Spencer J., Thinking with Crocodiles: An Iconic Animal at the Intersection of Early-Modern Religion and Natural Philosophy, in Early Science and Medicine, vol. 20, no. 3, Brill, 2015, pp. 209-40, http://www.jstor.org/stable/24760426