TY - BOOK AU - Bashir, Hina AU - Dr. Naseer Ahmed Asif. TI - lower and upper solution method for singular system U1 - 510 PY - 2013/// CY - Islamabad PB - CAMP - NUST KW - M Phil Thesis UR - http://10.250.8.41:8080/xmlui/handle/123456789/4208 ER -