Al-Khayat (1996)†, Al-Musawi & Wagner (2012), Al-Nafisi et al. (2009), Apel & Türkay (1999), Baakdah (2018)†, Beinlich & von Hagen (2006), Collins et al. (1984), Jones & Clayton (1983), Naderloo (2017)†, Naderloo et al. (2016)†, Naderloo & Türkay (2012)†, Naderloo et al. (2010)†, Naser et al. (2010)†, Rosenberg (2020), Rupp (2012)†, Rupp (2013)†, Rupp (2014)†, Rupp (2015)†, Saher et al. (2014)†, Shih et al. (2013)†, Shih et al. (2022)
Entries marked with † represent indirect references to location through citation.