| 2019-06 | Almost phi-fuzzy semi-ideals in groupoids | 김희식 |
| 2019-04 | BRACKET FUNCTIONS ON GROUPOIDS | 김희식 |
| 2010-08 | Carbothermal reduction에 의한 AlN 세라믹스의 열적 ․ | 김희식 |
| 2018-10 | Centroid Transformations of Intuitionistic Fuzzy Values Based on Aggregation Operators | 김희식 |
| 2015-12 | Characterizations of fuzzy subalgebras in BCK=BCI-algebras | 김희식 |
| 2019-11 | Constructing (pre)norms in BL-algebras and its action on topological BL-algebras | 김희식 |
| 2013-02 | Cycloidal algebras | 김희식 |
| 2011-04 | DEFORMATIONS OF d/BCK-ALGEBRAS | 김희식 |
| 2019-10 | Fibonacci periodicity and fibonacci frequency | 김희식 |
| 2012-02 | Fibonacci sequences in groupoids | 김희식 |
| 2017-06 | THE FIXED POINT ALTERNATIVE TO THE STABILITY OF AN ADDITIVE (alpha,beta)-FUNCTIONAL EQUATION | 김희식 |
| 2012-10 | Further Results on Derivations of Ranked Bigroupoids | 김희식 |
| 2019-05 | Fuzzy filters of hoops based on fuzzy points | 김희식 |
| 2015-07 | Fuzzy logical algebras and their applications | 김희식 |
| 2016-10 | Fuzzy rank functions in the set of all binary systems | 김희식 |
| 2011-09 | Fuzzy-Fated Filters of R-0-Algebras | 김희식 |
| 2018-10 | General Implicativity in Groupoids | 김희식 |
| 2013-02 | Generalized Fibonacci sequences in groupoids | 김희식 |
| 2019-04 | Graphs based on Hoop algebras | 김희식 |
| 2017-01 | Hesitant fuzzy translations and extensions of subalgebras and ideals in BCK/BCI-algebras | 김희식 |
