Alaa, A. and Sami, F. 2020. Energy Expenditure And Its Relation With Load Level Using (PLAYERTEKTEAM) During Matches for Iraqi Soccer Primer Referees. Journal of Physical Education. 31, 3 (Jan. 2020), 135–142. DOI:https://doi.org/10.37359/JOPE.V31(3)2019.868.