On March 15, 2019, Master's thesis Defense of Sona Shahin gizi Mustafayeva, graduate student at the Department of Languages and Literature of the School of Humanities, Education and Social Sciences of Khazar University, on “Retrospection in the work of Movlud Suleymanli” took place. Thesis defense was attended by Reyhan Madatova, PhD in Philology (Director), Associate Professor Vurgun Eyyub, Associate Professor Dilbar Zeynalova (scientific supervisor), Associate Professor Khatira Yusifova, Aynur Gazanfargizi, PhD in Philology, Jabir Mammadli, PhD (Candidate), Kamila Badalova (secretary).

Associate Professor Vurgun Eyyub, Associate Professor Khatira Yusifova, Aynur Gazanfargizi, PhD in Philology, Reyhan Madatova, PhD in Philology, Jabir Mammadli, PhD (Candidate), expressed their positive views and approved that Sona Shahin Mustafayeva merited to receive Master's degree. Following that, thesis work was accepted and evaluated with (95) grade, according to the voting results, and it was decided to award master's degree to the candidate.