Electoral system family
Cambodia
Answer
PR
Source
Law on Elections of Members of the National Assembly (amended 2013)
http://www.necelect.org.kh/nec_english/images/stories/legal/laws/LEMNA and its Amendment revised in January 2013 by NEC.pdf
Art. 5
The Members of the National Assembly shall be elected by a general, universal, free, fair, just, equal, direct, and secret election by means of secret balloting.
The electoral system shall be proportional representation with provincial/municipal constituencies.
*Art 118 meticulously spells out the mathematical formula (highest average formula) for the allocation of seats.