6. Toychiboev B. Historical numbers. –Guliston: Ziyo, 2011. - P. 29–39.
7
7. Toychiboev B. Fitrat is a linguist. - Tashkent, 1995
8
8. Tog'aev T. AshuraliZohiriyvauningtilshunoslikmerosi: Ph.D. diss. rework. - Tashkent, 2005.
9
9. AK Borovkoveski as a researcher of Uzbek language dictionaries // Problems of Uzbek language history. - Tashkent: Fan, 1977
10
10. Chorieva Z. Linguistic, spiritual and stylistic features of the letters in Abdullah Qadiri's novel "The Past": Ph.D. diss. rework. - Tashkent, 2006