Harahap, M. S. R. (2018). The Influence of Teaching Style and Confident Against the Results of a Study of Shooting in the Game of Football (Experiment Studies the Self Check Style and the Guided Discovery Style at a Private Junior High School Seventh Grader Tembung Sabilina). Universitas Negeri Medan.

Harahap, Muhammmad Syaiful Ramadhan. The Influence of Teaching Style and Confident Against the Results of a Study of Shooting in the Game of Football (Experiment Studies the Self Check Style and the Guided Discovery Style At a Private Junior High School Seventh Grader Tembung Sabilina). Universitas Negeri Medan, 2018.

Harahap, Muhammmad Syaiful Ramadhan. The Influence of Teaching Style and Confident Against the Results of a Study of Shooting in the Game of Football (Experiment Studies the Self Check Style and the Guided Discovery Style At a Private Junior High School Seventh Grader Tembung Sabilina). Universitas Negeri Medan, 2018.