Rudyshyn, S. D., Stakhova, I. A., Sharata, N. H., Berezovska, T. V., & Kravchenko, T. P. (2021). The Effects of Using a Case Study Method for Environmental Education. International Journal of Learning, Teaching and Educational Research, 20(6), 319–340. Retrieved from https://ijlter.myres.net/index.php/ijlter/article/view/91