Mexmonov Sultanali Umaraliyevich, Allayorov Shamsiddin Amanullayevich, Ruziyev Abdumalik Ortigalievich, Rasulyev Alisher Khamidullayevich, “Activity, Essence of Stock Exchange and Its Role in Business”, Annals of RSCB, pp. 5158–5161, Feb. 2021.