Carter, D. M. (2010). "The demos in Greek tragedy*". The Cambridge Classical Journal. 56: 47–94. doi:10.1017/S1750270500000282. ISSN2047-993X.Parameter |s2cid= yang tidak diketahui akan diabaikan (bantuan)
Frendo, Mario (February 2019). "Ancient Greek Tragedy as Performance: the Literature–Performance Problematic". New Theatre Quarterly. 35 (1): 19–32. doi:10.1017/S0266464X18000581. ISSN0266-464X.Parameter |s2cid= yang tidak diketahui akan diabaikan (bantuan)
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Duncan, Thomas Shearer (January 1935). "The Deux ex Machina in Greek Tragedy". Philological Quarterly. 14: 16. ProQuest1290993493.
Carter, D. M. (2010). "The demos in Greek tragedy*". The Cambridge Classical Journal. 56: 47–94. doi:10.1017/S1750270500000282. ISSN2047-993X.Parameter |s2cid= yang tidak diketahui akan diabaikan (bantuan)
Frendo, Mario (February 2019). "Ancient Greek Tragedy as Performance: the Literature–Performance Problematic". New Theatre Quarterly. 35 (1): 19–32. doi:10.1017/S0266464X18000581. ISSN0266-464X.Parameter |s2cid= yang tidak diketahui akan diabaikan (bantuan)