Najamuddeen, Bala, Musa Hamisu, and Sani Abba. 2025. “A NEW 2-POINT DIAGONALLY IMPLICIT VARIABLE STEP SIZE SUPER CLASS OF BLOCK BACKWARD DIFFERENTIATION FORMULA FOR SOLVING FIRST ORDER STIFF INITIAL VALUE PROBLEMS”. FUDMA JOURNAL OF SCIENCES 9 (7), 275 -82. https://doi.org/10.33003/fjs-2025-0907-3799.