As mentioned previously, questionnaires will be applied to answer the research questions. Furthermore, the secondary data is gathered from reliable sources, such as academic journals. The data will be used to compare with the primary data to support the results of this research. The secondary data comes from primary data of other researchers and is more quickly and cheaply obtainable than primary data because it is mostly available publically. Moreover, the secondary data is able to make the primary data collection more specific; it can help researchers to obtain the additional necessary information and identify research deficiencies (Naveen, 1998). It seems that secondary data is very important for building fundamental knowledge for researchers.