Yaakub, Nabilah, et al. “Perkaitan Orientasi Matlamat Dan Keseronokan Dalam Kalangan Atlet Hoki UPSI: Relationship of Goal Orientation and Enjoyment Among UPSI Hockey Athletes”. Jurnal Sains Sukan & Pendidikan Jasmani, vol. 8, no. 2, Dec. 2019, pp. 28-41, https://doi.org/10.37134/jsspj.vol8.2.4.2019.