Arto Gråstén, Timo Jaakkola, Jarmo Liukkonen, Anthony Watt, Sami Yli-Piipari. (2012) Prediction of Enjoyment in School Physical Education. Journal of Sports Science and Medicine(11), 260 - 269.
Arto Gråstén, Timo Jaakkola, Jarmo Liukkonen, Anthony Watt, Sami Yli-Piipari. (2012) Prediction of Enjoyment in School Physical Education. Journal of Sports Science and Medicine(11), 260 - 269.