Population and sample the study is using a mobile phone, prepaid and postpaid (of the mobile phone provider (AIS, Dtac and TrueMove) in Bangkok and Thailand's six regions.
The sample population and is the mobile services (prepaid and postpaid cellular service providers, major (AIS, Dtac and TrueMove) in Bangkok and six regions of Thailand.
The population and the subjects of this study were (prepaid postpaid mobile phone user and of the major mobile phone services AIS Dtac TrueMove (, and) in Bangkok, and 6 Thailand regions.