Kim, Hae Ryong books & textbook
Interesting Relationships between Mathematical Constants: Problems with respect to Mathematical Constants
Yong, Kang Kim, Hae Ryong Kim, Hyon Chol
Scholars' Press /2022-12-14 Paperback / 188 Pages
isbn-10: 6205520567 / isbn-13: 9786205520567
Harmonic Numbers and Open problems in Series
Ri, Il-Ung Kim, Hae-Ryong Kim, Hyon-Chol
Scholars' Press /2024-01-30 Paperback / 128 Pages
isbn-10: 3639669398 / isbn-13: 9783639669398
