Hudiburgh L, Garbinsky D. Data visualization: bringing data to life in an introductory statistics course. J Stat Educ. 2020;28(3):262-79. doi: 10.1080/10691898.2020.1796399
Wardman M, Chintakayala PK, de Jong G. Values of travel time in Europe: review and meta-analysis. Transp Res Part A Policy Pract. 2016 Dec;94:93-111. doi: 10.1016/j.tra.2016.08.019