Refinements and applications of Hermite-Hadamard type inequalities for fractional integrals based on harmonic convexity. Punjab Univ. J. Math. [Internet]. 2024 Jan. 13 [cited 2026 Jul. 20];56(1):51-69. Available from: https://pujm.pu.edu.pk/index.php/pujm/article/view/167