APA (7 वां संस्करण) प्रशस्ति पत्र

Angcahan, C. M. R., & Ravina, M. C. V. (1992). A Syntactic analysis of two essays by Salvador P. Lopez and Carlos P. Romulo. College of Arts and Letters, University of the Philippines Diliman.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Angcahan, Chona Mitzi R., और Maria Clara V. Ravina. A Syntactic Analysis of Two Essays by Salvador P. Lopez and Carlos P. Romulo. Quezon City: College of Arts and Letters, University of the Philippines Diliman, 1992.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Angcahan, Chona Mitzi R., और Maria Clara V. Ravina. A Syntactic Analysis of Two Essays by Salvador P. Lopez and Carlos P. Romulo. College of Arts and Letters, University of the Philippines Diliman, 1992.

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