| R.R.I.M. course onestate management and planning 4-6 November 1974. | R.R.I.M. | Tiada | | |
| R & r di lebuh raya kehidupan | Galeri Ilmu Sdn. Bhd. | Tiada | 2011 | 978-983-097-288-6 |
| R.R.I.M course on estate management and plaining | Pusat Penyelidikan Getah Malaysia | Tiada | 1974 | |
| R.R.I.M. refresher course on natural rubber processing 6-11 January 1975 | Pusat Penyelidikan Getah Malaysia | Tiada | 1974 | |
| R.R.I.M refresher course on natural rubber processing 12-17 January 1976 | Pusat Penyelidikan Getah Malaysia | Tiada | 1976 | |
| The P.R.R.I. - affair (as seen in the light of the history of the Indonesian Armed Forcces) | | Tiada | 19?? | |
| Bookmaking | R.R. Bowker Co. | Tiada | 1979 | 0835210979 |
| The "P.R.R.I. - Affair" | Nusantara | Tiada | t.t. | |
| Juniorplots | R.R. Bowker Co. | Tiada | | |
| Book publishing | R.R. Bowker Co. | Tiada | 1981 | 0835213269 |