Guffey SK, Slater TF, Slater SJ. Development Of The EGGS Exam Of GeoloGy Standards To Measure Students’ Understanding Of Common Geology Concepts. JAESE [Internet]. 2017 Jun. 6 [cited 2025 Feb. 21];4(1). Available from: https://journals.modernsciences.org/index.php/JAESE/article/view/79