THE EFFECTIVENESS OF WENNING’S INVESTIGATIVE MODEL IN THE ACHIEVEMENT OF PREPARATORY STAGE STUDENTS AND THEIR CONCEPTUAL THINKING. Inte. Res. Sci. Jour. [Internet]. 2025 Jun. 30 [cited 2026 Feb. 2];4(6):37-60. Available from: https://intentresearch.org/index.php/irsj/article/view/450