AKHTAR, Munir. FIVE-FACTOR CENTRAL COMPOSITE DESIGNS ROBUST TO A PAIR OF MISSING OBSERVATIONS. Journal of Research (Science), [S. l.], v. 12, n. 2, p. Pages: 105–115, 2001. Disponível em: http://jorscience.com/index.php/JRS/article/view/101. Acesso em: 16 jan. 2026.