Quorum requirements for a referendum to be valid

Uganda
Answer
Not specified by legislation
Source
CONSTITUTIONOF UGANDA (1995)
http://www.opm.go.ug/assets/media/resources/6/Constitution.pdf
THEREFERENDUM AND OTHER PROVISIONS ACT (2005)
http://aceproject.org/ero-en/regions/africa/UG/uganda-referendum-act-2005