Md Asaduzzamana -, Ali MZ. Existence of Positive Solution for a Nonlinear Weighted Bi-Harmonic System of Elliptic Partial Differential Equations via Fixed-Point Argument. GANIT: J. Bangladesh Math. Soc. [Internet]. 2020 Jul. 14 [cited 2024 Oct. 20];40(1):54-70. Available from: https://banglajol.info/index.php/GANIT/article/view/48195