Cita APA

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

Citación estilo Chicago

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

Cita MLA

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

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