Fischer, DV; Bryant, J (2008). "Effect of certified personal trainer services on stage of exercise behavior and exercise mediators in female college students". J Am Coll Health. 56 (4): 369–76. doi:10.3200/JACH.56.44.369-376. PMID18316279. S2CID43501852.
Fischer, DV; Bryant, J (2008). "Effect of certified personal trainer services on stage of exercise behavior and exercise mediators in female college students". J Am Coll Health. 56 (4): 369–76. doi:10.3200/JACH.56.44.369-376. PMID18316279. S2CID43501852.
Fischer, DV; Bryant, J (2008). "Effect of certified personal trainer services on stage of exercise behavior and exercise mediators in female college students". J Am Coll Health. 56 (4): 369–76. doi:10.3200/JACH.56.44.369-376. PMID18316279. S2CID43501852.