Nordin, M. R., Jamal, S. A. and Anuar , N. A. M. (2022) “CONTENT VALIDITY OF RESEARCH INSTRUMENTS: ASSESSING DOMESTIC ECOTOURISM IN PROTECTED AREAS”, ENLIGHTENING TOURISM. A PATHMAKING JOURNAL, 12(2), pp. 565-599. doi: 10.33776/et.v12i2.7123.