Mampitiya, Upali
Mathematics education – past, present and future
(Professor J. E Jayasuriya memorial lecture, 2014)
Mathematics education
Sri Lanka
Examination
J. E Jayasuriya
GCE (O/L)
Mathematics education – past, present and future
(Professor J. E Jayasuriya memorial lecture, 2014)
Mathematics education
Sri Lanka
Examination
J. E Jayasuriya
GCE (O/L)