Differential calculus. by U.S. Armed Forces Institute, Madison Wis

Lehrbuch der variations rechnung. by Kneser, Adolf, 1862

Problems in differential calculus supplementary to a treatise on differential calculus by Byerly, William Elwood 1849-

An Elementary treatise on the differential calculus,containing the theory of plane curves, with numerous examples. by William, Benjamin

An elementary treatise on the differential and integral calculus with examples and applications by Osborne, George A. (George Abbott), 1839-1927

An elementary treatise on the differential and integral calculus: with numerous examples. by Bowser, Edward Albert

Journal of Heuristics [ejournal].

Available for University of the Philippines Diliman via Springerlink. Click here to access

Journal of Optimization Theory and Applications [ejournal].

Available for University of the Philippines Diliman via Springerlink. Click here to access

Manuscripta Mathematica [ejournal].

Available for University of the Philippines Diliman via Springerlink. Click here to access

Mathematical Programming [ejournal].

Available for University of the Philippines Diliman via Springerlink. Click here to access