Nahok, B., Tumpeesuwan, S. & Tumpeesuwan, C. (2021). Five new species of the land snail genus
Landouria Godwin-Austen, 1918 (Gastropoda, Camaenidae) from northeastern Thailand, with note on genitalia and radula morphology of
Landouria diplogramma (Möllendorff, 1902).
European Journal of Taxonomy. 767(1): 142–166.