Vijay Kumar Tyagi , Dr.Surendra Pal. “A Study Of Academic Achievement Of Secondary School Students, Studying Through Regular & Open Mode In Relation To Problem Solving”. Ldealistic Journal of Advanced Research in Progressive Spectrums (IJARPS) eISSN– 2583-6986, vol. 1, no. 12, Dec. 2022, pp. 16-24, https://journal.ijarps.org/index.php/IJARPS/article/view/85.