| Progress of the School System of Sri Lanka During 50 Years of Universal Adult Suffrage, The | Rupasinghe | University of Colombo Review | 1982 | 1 | 2 | 84 - 96 | General |
| Promiscuous Breeding Habit of Elephas Maximus Maximus Linne, The | Deraniyagala | Spolia Zeylanica | 1960 | 29 | 1 | 73 - 74 | General |
| Propagation of the Giant Gourami, The | De Silva | Ceylon Today | 1959 | VIII | 1 | 18 - 22 | General |
| Proposal for Increasing the International Liquidity of Developing Countries, A | Jayarajah | Ceylon Journal of Historical & Social Studies, The | 1964 | 7 | 2 | 189 - 202 | General |
| Proposed Interim Self-Governing Authority, The | Nesiah | Polity | Jan-Feb 2004 | 1 | 5 | 19 - 23 | General |
| Prospects for Petroleum in Ceylon | Fernando | Ceylon Today | 1967 | 16 | 4 & 5 | 24 - 27 | General |
| Prospects of Mee (Madhuca Longifolia) in Sri Lanka | Senaratne | Loris | 1982 | XIV | 1 | 25 - 26 | General |
| Protect the Indian Spot-Billed Duck Anas poecilorhuncha in Sri Lanka | Gunawardena | Loris | June 2009 | 25 | 3 | 17-20 | General |
| Protected Areas: Changing to Meet Future Needs | Jansen | Loris | 1983 | XVI | 4 | 172 - 175 | General |
| Protecting Our Wildlife | N/A | Loris | 1970 | XII | 1 | 29 - 30 | General |
| Protection for the Elephant | N/A | Ceylon Today | 1963 | XII | 5 | 24 - 27 | General |
| Protection of the Wild Elephant, The | Soysa | Loris | 1958 | VIII | 1 | 40 - 42 | General |
| Protestant Missions in Ceylon | Blaze | Journal of he D.B.U. | 1938 | XXVII | 3 | 95 - 100 | Religion |
| Proverbs of the Sinhalese | Gunewardena | Times of Ceylon Annual | 1960 | N/A | N/A | N/A | General |
| Providing Free Meals for Ceylon School Children | Kulatunge | Ceylon Today | 1960 | 9 | 3 | 17 - 19 | General |
| Provincial Council & Their Significance, The | De Silva | Logos | 1992 | 31 | 1 & 2 | 104 - 118 | Politics |
| Provisional Inventory of Wetlands in Sri Lanka | Hoffmann | Loris | 1982 | XVI | 2 | 94 - 96 | General |
| Pseudo-Combat of the Adult Ceylon Elephant | Deraniyagala | Spolia Zeylanica | 1958 | 28 | 2 | 193 - 194 | General |
| Pseudo-Combat of the Monitor Lizard Varanus Bengalensis | Deraniyagala | Spolia Zeylanica | 1958 | 28 | 2 | 159 | General |
| Public Corporations in Ceylon, Their Constitution, Powers & Legal Position | Weerasooria | Ceylon Historical Journal, The | 1969 - 1970 | 19 | 1, 2, 3 & 4 | 50 - 61 | General |
|
|
