Ali A. Shihab, and Abdulhadi Ahmed Abd. “ON VIASMAN-GRAY MANIFOLD WITH GENERALIZED CONHARMONIC CURVATURE TENSOR”. Tikrit Journal of Pure Science 24, no. 7 (December 23, 2019): 117–121. Accessed May 11, 2024. https://tjps.tu.edu.iq/index.php/tjps/article/view/467.