Sakuma, Naomi, Naomi Aiba, Momoyo Kawamura, Ryosuke Katayama, and Hidenobu Takao. 2020. “THE CURRENT SITUATION OF MASTICATORY BEHAVIOR OF FIRST GRADER AT ELEMENTARY SCHOOL: A RELATIONSHIP BETWEEN MASTICATORY ABILITY AND STUDENTS’ LIKES AND DISLIKES”. PEOPLE: International Journal of Social Sciences 6 (2):193-207. https://doi.org/10.20319/pijss.2020.62.193207.