References
Elder, L. and Paul, R. (2012) 30 Days to Better Thinking and Better Living Through Critical Thinking: A Guide for Improving Every Aspect of Your Life, Revised and Expanded. New Jersey: Pearson Education.
Meltzoff, J. and Cooper, H. (2018) ‘Research questions and hypotheses’, Critical thinking about research: Psychology and related fields, 2, p. 23–41.