Tongsaeng, A. and Ongkasing, C. 2021. ECO-INNOVATION, GRASSROOTS INNOVATION UNDERPIN THE SUSTAINABLE DEVELOPMENT GOALS 2030 : A MULTIPLE-CASES STUDY OF MICRO, SMALL AND MEDIUM SIZED ENTERPRISE (MSMES). Journal of Graduate MCU KhonKaen Campus. 8, 3 (Sep. 2021), 341–353.