intalaw, siwaporn, วงษ์สรรค์ ว. and สมบูรณ์ ธ. 2022. DEVELOPMENT OF CITIZENSHIP LEARNING PACKAGES TOWARD THE LAW IN DAILY LIFE BY USING PROBLEM BASED LEARNING (PBL) FOR SECONDARY SCHOOL YEAR 3 STUDENTS. Mahamakut Graduate School Journal. 20, 1 (Jun. 2022).