Siregar, A., and S. Hasibuan. “Students’ Perceptions of Physical Education During the Covid-19 Pandemic at Junior High Schools in North Binjai District in 2020/2021”. PROSIDING SEMINAR NASIONAL PENDIDIKAN JASMANI DAN KEOLAHRAGAAN, Vol. 1, no. 1, Jan. 2023, pp. 294-9, doi:10.33503/prosiding_penjas_pjkribu.v1i1.2320.