Alvarez, G. C., & Layo, L. L. (1978). An empirical analysis of selected access indicators. College of Business Administration, University of the Philippines.
Chicago-referens (17:e uppl.)Alvarez, Gabriel C., och Leda L. Layo. An Empirical Analysis of Selected Access Indicators. Quezon City: College of Business Administration, University of the Philippines, 1978.
MLA-referens (9:e uppl.)Alvarez, Gabriel C., och Leda L. Layo. An Empirical Analysis of Selected Access Indicators. College of Business Administration, University of the Philippines, 1978.
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