Selim, Z. (1991). Improving an Approximation of the Digamma Function with Applications in Statistic. The Egyptian Statistical Journal, 35(2), 209-218. doi: 10.21608/esju.1991.427527
MLA
Zeinab M. Selim. "Improving an Approximation of the Digamma Function with Applications in Statistic", The Egyptian Statistical Journal, 35, 2, 1991, 209-218. doi: 10.21608/esju.1991.427527
HARVARD
Selim, Z. (1991). 'Improving an Approximation of the Digamma Function with Applications in Statistic', The Egyptian Statistical Journal, 35(2), pp. 209-218. doi: 10.21608/esju.1991.427527
VANCOUVER
Selim, Z. Improving an Approximation of the Digamma Function with Applications in Statistic. The Egyptian Statistical Journal, 1991; 35(2): 209-218. doi: 10.21608/esju.1991.427527