Ibrahim, A. (2012). Contiguous relations for 2F1 hypergeometric series. test, 20(2), 72-78. doi: org/10.1016/j.joems.2012.08.005
Adel K. Ibrahim. "Contiguous relations for 2F1 hypergeometric series". test, 20, 2, 2012, 72-78. doi: org/10.1016/j.joems.2012.08.005
Ibrahim, A. (2012). 'Contiguous relations for 2F1 hypergeometric series', test, 20(2), pp. 72-78. doi: org/10.1016/j.joems.2012.08.005
Ibrahim, A. Contiguous relations for 2F1 hypergeometric series. test, 2012; 20(2): 72-78. doi: org/10.1016/j.joems.2012.08.005