Štemberger, V., and T. Petrušič. “DIFFERENCES IN PHYSICAL ACTIVITY OF ADOLESCENTS OF DIFFERENT SEXES BETWEEN 12 AND 15 YEARS OLD ON DIFFERENT DAYS OF WEEK ”. Sport - Nauka I Praksa, Vol. 13, no. 1, Aug. 2023, pp. 13-20, doi:10.5937/snp13-1-44828.