APA (7th ed.) Citation

Kim, H. S., Neggers, J., & So, K. S. Some Aspects of -Units in BCK-Algebras. Wiley.

Chicago Style (17th ed.) Citation

Kim, Hee Sik, J. Neggers, and Keum Sook So. Some Aspects of -Units in BCK-Algebras. Wiley.

MLA (9th ed.) Citation

Kim, Hee Sik, et al. Some Aspects of -Units in BCK-Algebras. Wiley.