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| Ily: Year of Opportunity | UNESCO | Tiada | 1990 | |
| Social class and educational opportunity | William Heinemann | Tiada | 1956 | |
| Language in development : access empowerment opportunity | | Tiada | 1997 | |
| Nanyang: the lure of the Southern Ocean to land of opportunity & danger | Pelanduk Publications (M) Sdn Bhd | Tiada | 2007 | 978-967-978-948-5 |