| Sri Lanka's Development Thrust | Mallory E. | Wijesinghe | 1981 | General |
| Sri Lanka's Environment | Sanjeewa | Kaviratne | N/A | General |
| Sri Lanka's Ethnic Conflict: Some Relevant Statistics | QASLU | Veritas | N/A | General |
| Sri Lanka's Ethnic Crisis & National Security | Rohan | Gunaratna | 1998 | General |
| Sri Lanka's Ethnic Problem - Logos - Vol 23, No 3, 1984 | Centre For Society & Religion | N/A | 1984 | General |
| Sri Lanka's First Oblate - Paules Stephen Poorey | Edmund, Rt. Rev. Dr | Peiris | 1975 | Religion |
| Sri Lanka's First Prime Minister - Don Stephen Senanayake | H.A.J. | Hulugalle | 1975 | Politics |
| Sri Lanka's Foreign Affairs - Commemmorative Publication 50 Years | Ministry of Foreign Affairs | N/A | 1998 | General |
| Sri Lanka's Foreign Minister Replies to India's Prime Minister | Ministry of State | N/A | 1984 | General |
| Sri Lanka's Foreign Policy - A Study in Non-Alignment | H.S.S. | Nissanka | 1984 | Politics |
| Sri Lanka's Hybrid Presidential & Parliamentary System & The Separation of Powers Doctrine | H.M. | Zafrullah | 1981 | Politics |
| Sri Lanka's Magnificient Cloud Forests | Wolfgang | Werner | 2001 | General |
| Sri Lanka's Military: The Search for a Mission, 1949 - 2004 | Brian | Blodgett | 2004 | General |
| Sri Lanka's Modern English Literature | Wilfrid | Jayasuriya | 1994 | Literature |
| Sri Lanka's Mythology | R. | Weerakoon | 1985 | General |
| Sri Lanka's New Capital - Sri Jayawardanapura | N/A | N/A | N/A | General |
| Sri Lanka's Other Half - A Guide to the Central, Eastern & Northern Provinces | Juliet | Coombe | 2010 | General |
| Sri Lanka's Peace Process 2002 Critical Prespectives | Jayadeva | Uyangoda | 2003 | General |
| Sri Lanka's Real Alternatives | Pieter | Keuneman | 1978 | Politics |
| Sri Lanka's Second City: Dehiwala-Mount Lavinia | J. Vincent | Mendis | 1981 | General |
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