17 March 2021 | 14:32 Asia/Singapore Scheduled naps ‘significantly improves’ learning and memory for teenagers, NUS study finds CNA Online, 17 March 2021Suria News Online, 17 March 2021Vasantham News Online, 17 March 2021Hao 96.3FM, 17 March 2021Lianhe Zaobao, 18 March 2021, p12