Mustafaqulova Dildora Ismatullayevna, Usanov Ulug’bek Nurulla o’g’li и Ismatullayev Otabek 2021. TALABALARDA TIZIMLI TAFAKKURNI RIVOJLANTIRISH. Журнал естественных наук. 3, 5 (дек. 2021), 161-163.