Pan, I. L. (1998). Napocor sales grow 7.36% despite industry slowdown. Manila Times.
Chicagoスタイル(17版)引用形式Pan, Isabel L. "Napocor Sales Grow 7.36% Despite Industry Slowdown." Manila Times 1998.
MLA(9版)引用形式Pan, Isabel L. "Napocor Sales Grow 7.36% Despite Industry Slowdown." Manila Times, 1998.
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