00000nam 2200000 4500 INLIS000000000005172 20220716120951.0 220716||||||||| | ||| |||| ||eng|| 0010-072200000005172 eng 153.43 153.43 WAT P Watanabe, Ken Problem solving 101 : a simple book for smart people New York: Penguin Grup, 2009 xii, 111 hlm : ilus.; 22 cm Problem Solving