“The Effectiveness of Each of the Prototypical Fryer and Daniel in the Acquisition of Scientific Concepts and the Development of Cognitive Motivation Among Second Grade Average Students”. ALUSTATH JOURNAL FOR HUMAN AND SOCIAL SCIENCES 219, no. 2 (December 15, 2020): 441–466. Accessed December 20, 2024. https://alustath.uobaghdad.edu.iq/index.php/UJIRCO/article/view/1563.