Published by Dr. INDIKA HERATH 22 Dec 10:40 am Piliyandala, Colombo
approval obtained from ministry of education and National Library, Sri Lanka.
New attractive story and no boring
develop good attitudes of students
enhance knowledge
nice written style
research concepts are included wisely
Author is well qualified Dr. Indika Herath (BSc./ MSc./PhD)
Free delivery (no need to wasting time)