SRI LANKA. Natural Resources, Energy & Science Authority
Seminar report : social science research methodology - 24th aug. - 13th Sep. 1980 /Natural Resources, Energy & Science Authority of Sri Lanka - Colombo Natural Resources, Energy & Science Authority of Sri Lanka 1983 - 268 p.
300 / SRI
Seminar report : social science research methodology - 24th aug. - 13th Sep. 1980 /Natural Resources, Energy & Science Authority of Sri Lanka - Colombo Natural Resources, Energy & Science Authority of Sri Lanka 1983 - 268 p.
300 / SRI