Authors: El-Nakhal, HA

Citation: Ha. El-nakhal, The relation between typical concentrations of chemical constituents in potable water and their injurious limits, ENVIR GEOL, 40(1-2), 2000, pp. 27-30

Authors: El-Nakhal, HA

Citation: Ha. El-nakhal, The relation between the Late Cretaceous foraminiferal genera MeridionallaEl-Nakhal (1982) and Costellagerina Petters and others (1983), J FORAMIN R, 29(1), 1999, pp. 85-85

Authors: Jacobs, LL Murry, PA Downs, WR El-Nakhal, HA

Citation: Ll. Jacobs et al., A dinosaur from the Republic of Yemen, FOSSIL VERTEBRATES OF ARABIA, 1999, pp. 454-459