Measure of Slope Rotatability for Second Order Response Surface Designs Under Tri-Diagonal Correlation Error Structure Using Central Composite Designs: Measure of Slope Rotatability with Tri-Diagonal Error Stricture Using CCD. JKSA [Internet]. 2020 Dec. 1 [cited 2026 Nov. 5];31(1):85-104. Available from: https://www.ojs.ksa.org.in/index.php/JKSA/article/view/34