http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
effect of piper bettle leaf extracts on the biochemical and ultrastructure properties of Streptoccus mutans ATCC 25175
Thesis (Ph.D) -- Jabatan Biologi Mulut, Fakulti Pergigian, Universiti Malaya, 2008.