Austria, . M. . . S., & Avila, J. L. V. (2001). Looking beyond APTA: Prospects and challenges for inter-regional trade. Philippine Journal of Development.
Chicago-viite (17. p.)Austria, Myrna S., ja John Laurence V. Avila. "Looking Beyond APTA: Prospects and Challenges for Inter-regional Trade." Philippine Journal of Development 2001.
MLA-viite (9. p.)Austria, Myrna S., ja John Laurence V. Avila. "Looking Beyond APTA: Prospects and Challenges for Inter-regional Trade." Philippine Journal of Development, 2001.
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