While a specific single PDF titled exactly that may vary (often found as lecture notes or book chapters), the content universally attributed to Moustapha covers two distinct families of machines: and Radial (Centripetal) Flow turbines.
"Axial and Radial Turbines" is often cited in academic papers regarding turbine loss modeling and preliminary design codes. Hany Moustapha's industrial background ensures that the assumptions made in the formulas reflect real-world manufacturing and operational constraints. Axial And Radial Turbines By Hany Moustapha.pdf