A. Kaewngam, S. Phupu, and U. Sinlapaninman, “DESIGN OF LEARNING ACTIVITY PACKAGES TO ENHANCE MECHANICAL DRAWING SKILLS IN COMPUTER-AIDED DRAFTING COURSE FOR SECOND-YEAR VOCATIONAL CERTIFICATE STUDENTS KALASIN TECHNICAL COLLEGE”, AJMBU, vol. 14, no. 1, pp. 27–38, Mar. 2025.