Deny Setiawan, J. Ivana, S. Yunita, and H. Hidayat. “Social Science Material Development Design Space-Time-Values Dimensions to Improve 21st Century Life Skills”. Randwick International of Social Science Journal, Vol. 3, no. 4, Oct. 2022, pp. 702-16, doi:10.47175/rissj.v3i4.520.