Boone (1934)†, Crane (1975)†, Naderloo et al. (2016)†, Naderloo et al. (2010)†, Naiyanetr (2007), Rathbun (1910), Shih et al. (2018)†, Shih & Poupin (2020)†, Suvatti (1938)†, Suvatti (1950)†, Tweedie (1937)†
Entries marked with † represent indirect references to location through citation.