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Paxton, Raheem J.; Nigg, Claudio; Motl, Robert W.; Yamashita, Marisa; Chung, Richard; Battista, Jackie; Chang, JoAnn (2008). Physical Activity Enjoyment Scale Short Form—Does It Fit for Children? Research Quarterly for Exercise and Sport, 79(3), pp. 423-427. Taylor & Francis 10.1080/02701367.2008.10599508
Battista, Jackie; Nigg, Claudio R.; Chang, Jo Ann; Yamashita, Marisa; Chung, Richard (2005). Elementary After School Programs. Californian journal of health promotion, 3(4), pp. 108-118. California State University 10.32398/cjhp.v3i4.1785
