[1]
Singkorn, S., Klinbumrung, K. and Akatimagool, S. 2025. Development of Instructional Package Using Innovation-Based Learning Model in High Frequency Engineering for Enhancing Innovative Analytical Thinking Skill. Ratchaphruek Journal. 23, 3 (Dec. 2025), 214–230. DOI:https://doi.org/10.14456/rpjnrru.2025.44.