Trump, Jason B., and M. Jeannette Lawler. “Planetarium Use In Introductory Astronomy Courses”. Journal of Astronomy & Earth Sciences Education (JAESE) 9, no. 1 (June 1, 2022): 1–16. Accessed July 23, 2024. https://clutejournals.com/index.php/JAESE/article/view/10404.