Ponsarian, A. G. (2007). The philosophical foundations of Viktor Frankl's logotherapy. Philippiniana Sacra.
Chicagoスタイル(17版)引用形式Ponsarian, Agnes G. "The Philosophical Foundations of Viktor Frankl's Logotherapy." Philippiniana Sacra 2007.
MLA(9版)引用形式Ponsarian, Agnes G. "The Philosophical Foundations of Viktor Frankl's Logotherapy." Philippiniana Sacra, 2007.
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