Kingery, W.D., 1959. Surface tension of some liquid oxides and their temperature coefficients. Journal of the American Ceramic Society, 42(1), pp.6-10.
Suggested textbook references about the composition effect on surface tension of glass melts:
Horst Scholze, Glass ― Nature, Structure, and Properties, Springer-Verlag, New York, 1991; Le Verre ― Nature, structure et propriétés, 2ème ed., Institut du Verre, Paris, 1980.
J. E. Stanworth, "Physical Properties of Glass", Oxford University Press / Clarendon Press, Oxford, 1953.