ANALYSIS OF THICK RECTANGULAR PLATES RESTING ON NONLINEAR WINKLER FOUNDATION. J. eng. sustain. dev. [انترنت]. 1 يناير، 2016 [وثق 20 مايو، 2024];20(1):118-34. موجود في: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/638