| On the standard lengths of angle bisectors and the angle bisector theorem G Amarasinghe Global Journal of Advanced Research on Classical and Modern Geometries 1 (1 …, 2012 | 15 | 2012 |
| A concise elementary proof for the Ptolemy’s theorem GWIS Amarasinghe Global Journal of Advanced Research on Classical and Modern Geometries 2 (1 …, 2013 | 12 | 2013 |
| Advanced plane geometry research–I G Amarasinghe Sri Lanka Association for the Advancement of Science, 2010 | 3 | 2010 |
| Advanced plane geometry research–III: Alternative proofs for the standard theorems in plane geometry G Amarasinghe Sri Lanka Association for the Advancement of Science, 2010 | 3 | 2010 |
| A New Theorem on any Right-angled Cevian Triangle GWIS Amarasinghe MATHEMATICS COMPETITIONS 24 (02), 29 - 37, 2011 | 1 | 2011 |
| On Ptolemy's Theorem and Related Derivatives IS Amarasinghe Proceedings of SLIIT International Conference on Advancements in Sciences …, 2023 | | 2023 |
| An Alternative Method of being obtained the Roots of a Cubic Equation with the Use of Advanced Euclidean Geometry and Trigonometry IS Amarasinghe | | |
| MathEduc Database GW Amarasinghe | | |
