Kushakov M.S, Kurbonova M.M., and Toshtemirov Sh. “STRATIGRAPHY OF THE PALEOGENE OF THE SURKHANDARYA DEPRESSION BY NANNOPLANKTON”. JournalNX - A Multidisciplinary Peer Reviewed Journal, vol. 10, no. 2, Feb. 2024, pp. 43-47, https://repo.journalnx.com/index.php/nx/article/view/5274.