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Mahesar, S., MUHAMMAD MUJTABA SHAIKH, Kamran Malik and Sawera Mastoi 2025. Contra-Harmonic Mean Derivative-Based Open Newton-Cotes Quadrature Rules. Sindh University Research Journal - SURJ (Science Series). 57, 02 (Dec. 2025), 1–10. DOI:https://doi.org/10.26692/surjss.v57i02.7752.