Kasim, N.F., Aldred, S. and Van Zanten, J.V. (2020) “Tai Chi and Zumba Gold®: An alternative to motivate elderly in doing physical activity”., Jurnal Sains Sukan & Pendidikan Jasmani, 9(1), pp. 62–69. doi:10.37134/jsspj.vol9.1.7.2020.