You may also wish to search for items by Halawa.
Only one matching reference was found.
Halawa, M.M.; Georgiuss, R.S.; El-Sabban, S.; Ammar, M.M., Study of the freezing temperature of benzoic acid as a standard reference material in thermometry, J. Mater. Sci., 1989, 24, 2619. [all data]