Madan Nagre, Sahebrao Popalghat. HIGHER-ORDER ISOPARAMETRIC RECTANGULAR ELEMENT BASED FINITE ELEMENT METHOD FOR EIGENVALUE PROBLEMS IN ELECTROMAGNETICS. IJRD [Internet]. 2022 Jul. 7 [cited 2024 Jul. 3];7(7):16-29. Available from: https://eprajournals.net/index.php/IJRD/article/view/649