Keyword: alternative certification
Patricia Friedrichsen, John Lannin, Sandra Abell, Fran Arbaugh, Mark Volkmann
EURASIA J Math Sci Tech Ed, Volume 4, Issue 2, pp. 169-182
Fran Arbaugh, Sandra Abell, John Lannin, Mark Volkmann, William Boone
EURASIA J Math Sci Tech Ed, Volume 3, Issue 3, pp. 191-201