“IMPROVING EDUCATIONAL EFFECTIVENESS IN TEACHING PRIMARY EDUCATION SUBJECTS BASED ON INTEGRATION AND THE 4K MODEL”, Wor. Bul. of Edu. and Lea., vol. 2, no. 5, pp. 283–288, May 2026, Accessed: Jun. 25, 2026. [Online]. Available: http://worldbulletin.org/index.php/1/article/view/468