共 22 条
[1]
Andrews E., 2005, Journal of Geoscience Education, V53, P281, DOI [DOI 10.5408/1089-9995-53.3.281, 10.5408/1089-9995-53.3.281]
[2]
[Anonymous], 2007, AM SECONDARY ED
[3]
[Anonymous], GEOGR LIF NAT GEOGR
[4]
BAINER DL, 1998, 429807 ERIC ED
[5]
BAINER JD, 2001, 457038 ERIC ED
[6]
Brother C.C., 1991, J ENVIRON EDUC, V22, P22, DOI 10.1080/00958964.1991.9943058
[7]
*BRS, 2003, GREAT LAK RESP AW VI
[8]
CARR K, 2002, SCH SCI MATH, V102, P285
[10]
Duggan-Haas D., 1998, ANN M AM ED RES ASS