Andreansyah, A., Herliani, H. dan PM Labulan , P.L. 2021. A DEVELOPMENT LEARNING MEDIA APPLICATION OF SNAKES ON THE NERVOUS SYSTEM MATERIALS TO INCREASE LEARNING OUTCOMES AND CONCEPTS MASTERY OF HIGH SCHOOL STUDENTS IN THE 2020/2021 ACADEMIC YEAR. IJER - INDONESIAN JOURNAL OF EDUCATIONAL REVIEW. 8, 1 (Jul 2021), 45-54.