Mammaev, M M. “SYMMETRY AND ASYMMETRY IN FORMS AND DECORATIVE FINISH OF MUSLIM GRAVESTONES OF THE 14th -15th CENTURIES IN THE VILLAGE OF KUBACHI”. History, Archeology and Ethnography of the Caucasus, vol. 13, no. 4, Dec. 2017, pp. 54-73, https://doi.org/10.32653/CH13454-73.