Mamadiyorov Muzaffar Umirzakovich and Mamadiyarova Dilshoda Umirzokovna, “SOME BIOECOLOGICAL FEATURES PAULOWNIA TOMENTOSA AND CHITALPA TASHKENTENSISS, WHICH PROVIDE A PROSPECTIVE VIEW IN SAMARKAND CITY”, JournalNX, pp. 1181–1184, Feb. 2021.