Ningsi, E. H., & Lambok Manurung. (2021). The Influence of Financial Attitude and Financial Knowledge on Saving Interest (Case Study on Students of Brigjend Katamso I Vocational High School Medan). Jurnal Mantik, 5(3), 1873-1882. Retrieved from https://iocscience.org/ejournal/index.php/mantik/article/view/1769