Eunhwan Roh , Sangtae Jeong
Education of Primary School Mathematics 19 ( 4) 291 -311
SM Mostafa ,
Soo chow journal of mathematics 25 ( 1) 57 -70
Jeonggi Kang , Youngbae Jun , Eunhwan Roh
Journal of the Korean School Mathematics Society 16 ( 1) 219 -240
E H Roh , Y B Jun , J Meng
Mathematica japonicae 43 ( 3) 559 -562
S M Hong , S Z Song , Y B Jun , E H Roh
Mathematica japonicae 43 ( 2) 383 -388
E H Roh , Y B Jun , J Meng
Mathematica japonicae 47 ( 1) 33 -43
EH Roh , Y Xu , Z Song , K Qin
Scientiae Mathematicae japonicae 55 ( 1) 107 -113
J W Nam , Y B Jun , E H Roh
Mathematica japonicae 43 ( 3) 555 -557
S M Wei , E H Roh , Y B Jun
Mathematica japonicae 43 ( 1) 47 -50
Y B Jun , E H Roh , S Y Kim
MATHEMATICA JAPONICA 52 ( 2) 279 -283
Jae-Doek Kim , Young-Mi Kim , Eun-Hwan Roh
Pure and Applied Mathematics 16 ( 1) 59 -68
Eun-Hwan Roh , Young-Bae Jun , Wenping Huang
Kyungpook Mathematical Journal 38 ( 2) 387 -387
Zhaomu Chen , Yisheng Huang , Eun-Hwan Roh
Communications of The Korean Mathematical Society 10 ( 3) 499 -518
Jie Meng , Eun-Hwan Roh , Young-Bae Jun
East Asian mathematical journal 10 ( 1) 9 -19
Eun-Hwan Roh , Young-Bae Jun
Communications of The Korean Mathematical Society 10 ( 1) 11 -14
Eun-Hwan Roh , Young-Bae Jun , Yang Xu
Bulletin of The Korean Mathematical Society 35 ( 1) 13 -24
Eun-Hwan Roh , Young-Bae Jun
East Asian mathematical journal 22 ( 2) 207 -213
Young-Bae Jun , Eun-Hwan Roh , Jeong-Gi Kang , Dae-Eui Kim
Communications of Mathematical Education 24 ( 3) 543 -562
Young-Bae Jun , Eun-Hwan Roh , Jeong-Gi Kang
Communications of Mathematical Education 25 ( 1) 21 -45
Chan-Sik Jung , Eun-Hwan Roh
The Mathematical Education 48 ( 4) 455 -467