共 52 条
[31]
Pehkomen E., 1997, Internation Reviews on Mathematical Education, V29, P63, DOI DOI 10.1007/S11858-997-0001-Z
[32]
Pelczer I, 2011, MATH ENTHUS, V8, P383
[33]
Pooja W., 2012, Indian Streams Research J, V2, P1
[34]
Prouse H.L., 1967, The Mathematics Teacher, V60, P876
[36]
Runco M.A., 1994, PROBLEM FINDING PROB
[37]
Runco M.A., 1999, Encyclopedia of Creativity, V1, P577