Ulug‘bekovich, A. D. “ENVIRONMENTAL AND ECONOMIC EFFICIENCY OF ACTIVE AND PASSIVE SOLAR HEATING SYSTEMS WITH SEASONAL HEAT STORAGE IN THE CLIMATIC CONDITIONS OF TASHKENT CITY”. Research Focus International Scientific Journal, vol. 5, no. 4, May 2026, pp. 28-32, https://refocus.uz/index.php/rf/article/view/2298.