Rosyada MRF, Sulaiman S, Rustiadi T. Contribution of Physical Fitness, Socio-Economic Conditions and School Environment towards Academic Learning Achievement of Elementary School Students in North Semarang District 2019. JPES [Internet]. 2Oct.2019 [cited 27Dec.2024];8(6):222-7. Available from: https://journal.unnes.ac.id/sju/jpes/article/view/34468