| Selection of the Animals of Sri Lanka, A | John | Banks | 1986 | General |
| Selection of the Birds of Sri Lanka, A | John | Banks | 1980 | General |
| Selection of the Butterflies of Sri Lanka, A | John | Banks | 1985 | General |
| Selection of the Fruits of Sri Lanka, A | Jayaindra | Fernando | 1997 | General |
| Selections From The Writings of Hon'ble Mr K.Balasingham | S. | Swaminathan | 1931 | Politics |
| Self Environment & Communication | Nimal | Dissanayake | 1991 | General |
| Self-Portrait Of A King | Lucien | De Zoysa | 1971 | Literature |
| Selwood Nuwara Eliya & The Story of an English Cottage | Sinharaja, Dr | Tammita - Delgoda | 2006 | General |
| Seminar on Environmental Education in Sri Lanka | UNESCO | N/A | 1988 | General |
| Senaka | Harsha | Bhatkal | 2008 | General |
| Senaka Bibile - The Man and His Work | N/A | N/A | 1978 | General |
| Senaka Senanayake | Nalini | Senanayake | 1995 | General |
| Senate Speeches - A.M.A.Azeez | M.Ali | Azeez | 2008 | Politics |
| Senator Missen Report on Sri Lanka, The: A QASLU Analysis | QASLU | N/A | N/A | General |
| Senile Leftism - A Reply To Edmund Samarakkody | V. | Karalasingham | 1966 | Politics |
| Sense of Viidu, A. The (Re)creation of Home by the Sri Lankan Tamil Diaspora in Australia | Nirukshi | Perera | 2020 | General |
| SEP & The Socialist United States of Sri Lanka and Eelam, The. | Socialist Equity Party | N/A | 1999 | General |
| Separatist Conflict in Sri Lanka, The - Terrorism, Ethnicity, Political Economy | Asoka | Bandarage | 2009 | General |
| Separatist Conflict in Sri Lanka, The - Terrorism, Ethnicity, Political Power | Asoka | Bandarage | 2009 | General |
| Separatist Conflict in Sri Lanka, The - Terrorism, Ethnicity, Political Power | Asoka | Bandarage | 2009 | General |
|
|
