APA (7th ed.) Citation

Estupigan, R. (1997). Secrets of effective study habits. Manila Bulletin.

Chicago Style (17th ed.) Citation

Estupigan, Ruth. "Secrets of Effective Study Habits." Manila Bulletin 1997.

MLA (9th ed.) Citation

Estupigan, Ruth. "Secrets of Effective Study Habits." Manila Bulletin, 1997.

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