Atiga, r. C. (2018). An assessment of the factors affecting the profitability of duty-free shops in the clark economic zone comparative study of demagus trading corporation oriental and clark trading corporation parkson. University of the Philippines Diliman Extension Program in Pampanga.
Chicago Style (17. basım) AtıfAtiga, roxanne C. An Assessment of the Factors Affecting the Profitability of Duty-free Shops in the Clark Economic Zone Comparative Study of Demagus Trading Corporation Oriental and Clark Trading Corporation Parkson. Pampanga: University of the Philippines Diliman Extension Program in Pampanga, 2018.
MLA (9th ed.) AtıfAtiga, roxanne C. An Assessment of the Factors Affecting the Profitability of Duty-free Shops in the Clark Economic Zone Comparative Study of Demagus Trading Corporation Oriental and Clark Trading Corporation Parkson. University of the Philippines Diliman Extension Program in Pampanga, 2018.