D. L. Setyowati, A. R. Firdaus, and N. R. Rohmah, “RELATIONSHIP OF SAFE RIDING KNOWLEDGE, PERCEPTION ABOUT DANGER, AND SAFE RIDING BEHAVIOR AMONG SENIOR HIGH SCHOOL STUDENTS IN SAMARINDA INDONESIA”, Public Health of Indonesia, vol. 5, no. 3, pp. 80–84, Oct. 2019.