Sarika, Varee, Charin Mangkhang, and Jarunee Dibyamandala. 2021. “SOCIAL STUDIES LEARNING PACKAGE DEVELOPMENT IN ECONOMICS INTEGRATING WITH HISTORICAL PROCESS TO ENHANCE DIGITAL CITIZENSHIP FOR SECONDARY STUDENTS”. Journal of MCU Nakhondhat 8 (5). Nakhon Si Thammarat, Thailand:73-86. https://so03.tci-thaijo.org/index.php/JMND/article/view/252202.