Traina, R. A. (1952). Methodical Bible Study. Zondervan.
Tohutoru Kātū Chicago (17th ed.)Traina, Robert A. Methodical Bible Study. Grand Rapids: Zondervan, 1952.
Tohutoro MLA (9th ed.)Traina, Robert A. Methodical Bible Study. Zondervan, 1952.
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