Sutarmi, Sutarmi, et al. “Effectivenes Of Puzzle Play Therapy To Reduce Anxiety, Case Study In Pre-School Age Children Who Undergo Chemotherapy At Rsup Dr. Kariadi Semarang”. Jurnal Studi Keperawatan, vol. 4, no. 2, Sept. 2023, pp. 20-24, doi:10.31983/j-sikep.v4i2.10323.