APA (7th ed.) Citation

Canoy, S. R. (2005). Semi-open sets and semi-closure of a set. Mindanao Forum.

Chicago Style (17th ed.) Citation

Canoy, Sergis R. "Semi-open Sets and Semi-closure of a Set." Mindanao Forum 2005.

MLA (9th ed.) Citation

Canoy, Sergis R. "Semi-open Sets and Semi-closure of a Set." Mindanao Forum, 2005.

Warning: These citations may not always be 100% accurate.