Ilangakoon, S.R. (2022). Morphological productivity in derivational suffixation and borrowing in standard Sri Lankan Englsih. [Unpublished doctoral dissertation] University of Kelaniya. Ilangakoon, S.R., W.M. Wijeratne & C.D. Senaratne (2021) Cultural and core borrowings reclassified: A corpus-based study of Sri Lankan English vocabulary. International Journal of Multidisciplinary Studies. Vol.8 No.3.  Available at: http://journals.sjp.ac.lk/index.php/ijms/article/view/5383

Ilangakoon, S.R. (2011). The Compilation of an Arts Academic Corpus for Sri Lankan Undergraduates. (Unpublished Master’s thesis).Open University of Sri Lanka.

Ilangakoon, S.R. (2012). Identifying Threshold Vocabulary for Academic study. In Ratwatte, H. (Ed.), VISTAS Journal of Humanities and Social Sciences– Special Issue on English in Sri Lanka in Honour of Professor Emeritus Ryhana Raheem. Vol 7-8, 141-159. Open University of Sri Lanka.

Ilangakoon,S.R. (2012) Determining threshold vocabulary to cope with academic studies.  7th International SLELTA Conference 2012 Changing Paradigms in English Language Teaching. Colombo

Ilangakoon, S.R. (2006). Designing a Tailor –made course for IRQUE, University of Colombo. In Fernando, D. & Mendis, D. (Eds.), English for Equality, Employment and Empowerment: Proceedings of the Sri Lanka English Language Teachers’ Association 2006 Conference (pp. 109-116). Colombo.