袁長瑞

看笑話長智慧 : = 兩佰則讓你更為聰明的啟示 / by: 袁長瑞 (Language materials, printed)

創意發想 = = Creative motivation / by: 袁長瑞 (Language materials, printed)

靈光乍現 : = 袁大頭的創意推理時間 / by: 袁長瑞 (Language materials, printed)

邏輯教室 : = 袁大頭的推理遊戲時間 / by: 袁長瑞 (Language materials, printed)

邏輯教室 : = 袁大頭的推理遊戲時間 / by: 袁長瑞 (Language materials, printed)