Ismailov , M. M. “THE EFFECT OF MULTIPLICITY OF CARRIER CIRCULATION ON THE EFFICIENCY OF SINGLE-CONTOUR THERMOISIPHON SYSTEMS OF SOLLOR HOT-WATER SUPPLY”. GOLDEN BRAIN, vol. 1, no. 1, May 2023, pp. 371-3, https://researchedu.org/index.php/goldenbrain/article/view/4602.