Al-Ghais & Cooper (1996)†, Apel & Türkay (1999)†, Baakdah (2018)†, Balss (1924)†, Boone (1934)†, Collins et al. (1984), Crane (1975)†, El-Sayed et al. (2016)†, Hogarth (1986), Lewinsohn (1977)†, Naderloo (2017)†, Naderloo & Türkay (2012)†, Naderloo et al. (2010)†, Nobili (1906), Pocock (1903), Price et al. (1987)†, Rosenberg (2020), Shih et al. (2018)†, Shih & Poupin (2020)†, Shih et al. (2022), Simões et al. (2001)
Entries marked with † represent indirect references to location through citation.