Tojiboyev , B. T. “ENERGIYATEJOVCHI MATERIALLARNI MAXALLIY XOM ASHYO MATERIALLAR ASOSIDA TAYYORLASH VA SINOVDAN O‘TKAZISH”. Educational Research in Universal Sciences, vol. 2, no. 15 SPECIAL, Nov. 2023, pp. 650-3, http://erus.uz/index.php/er/article/view/4857.