1.
van der Gen A. International Science Study for Undergraduates
Needs, Values, Opportunities, Problems, Models: Needs, Values, Opportunities, Problems, Models. Frontiers [Internet]. 1997 Nov. 15 [cited 2024 May 2];3(1):210-7. Available from: https://frontiersjournal.org/index.php/Frontiers/article/view/55