9 1 10 Roles Primary Author mixed material 9780873534956 National Council of Teachers of Mathematics 2001 419FYZV4FVL._SX321_BO1%2C204%2C203%2C200_.jpg.jpg Siswanto Primary Author Santoso, Wiwid Tabah Translator mixed material 9789790451421 Solo Bilingual 2011 Willoughby, Stephen S. Primary Author Bereiter, Carl Primary Author Hilton, Peter Primary Author Rubinstein, Joseph H. Primary Author mixed material 0812605047 United States of America Open Court 1987 519_wil_r_.jpg.jpg Willoughby, Stephen S. Primary Author Bereiter, Carl Primary Author Hilton, Peter Primary Author Rubinstein, Joseph H. Primary Author mixed material 0812605039 United States of America Open Court 1987 519_wil_r.jpg.jpg Bishop, Alan J. Primary Author mixed material 9027715351 New York Kluwer Academic Publisher 2002 519_fre_d.jpg.jpg A New Aspect of Mathematical Method Polya, G. Primary Author mixed material United States of America Princeton University Press 1973 Problem-Solving and Proofs D'Angelo, John P. Primary Author West, Douglas B. Primary Author mixed material 013014412 United States of America Prentice Hall 2000 519_ANG_m.jpg.jpg A Self-Teaching Guide Ashley, Ruth Primary Author mixed material 0471080861 Canada John Wiley & Sons 1980 519_ash_b.jpg.jpg HOGG, Robert V. Additional Author mixed material 0023557109 USA Macmillan Publishing 1978