Pratama, R.H. and Affandi, G.R. 2023. The Relationship Between Levels of Mathematics Anxiety and Mathematics Learning Outcomes of Upper Grade Elementary School Students in Sidoarjo. Indonesian Journal of Innovation Studies. 21, (Jan. 2023), 10.21070/ijins.v21i.803. DOI:https://doi.org/10.21070/ijins.v21i.803.