Yuldashev Narbek Khudainazarovich,, Khurmamatov Abdugoffor Mirzabdullaevich and Khudaynazarov Shokhrukhbek Narbek ug’li 2021. ANALYSIS OF PHYSICAL AND CHEMICAL PROPERTIES OF HYDROCARBON WASTE. World Bulletin of Social Sciences. 2, (Aug. 2021), 13-16.