R. S. Abdulmazidov and Z. A. Magomedova, “EPISTOLARY SOURCES ON HISTORY IMAMAT: CORRESPONDENCE OF DANIYAL-BEK OF ELISU”, ИАЭК, vol. 14, no. 2, pp. 93–106, Jun. 2018, doi: 10.24411/2618-6772-2018-12007.