J. Bulgren

发表

Donald D. Deshler, Michael F. Hock, Jim Knight, 2001 .

James D. Ellis, J. Bulgren, Amber Rowland, 2017 .

Janis A. Bulgren, J. Bulgren, Ann Knackendoffel, 1986 .

James D. Ellis, Janis A. Bulgren, J. Bulgren, 2013, Journal of Science Education and Technology.

James D. Ellis, B. Frey, J. Bulgren, 2015 .

Janis A. Bulgren, J. Bulgren, 2004 .