1.1. In English Dictionaries and Encyclopedias

1.2. In Bible Dictionaries and Encyclopedias

• Bithynia | Tyndale Bible Dictionary
• Bithynia | Baker Encyclopedia of the Bible
• Bithynia | The New Bible Dictionary, Third Edition
• Bithynia | Nelson’s New Illustrated Bible Dictionary
• Bithynia | Smith’s Bible Dictionary
• Βιθυνία, ας | Exegetical Dictionary of the New Testament
• Bithynia | Harper’s Bible Dictionary

1.3. In Theological Dictionaries and Encyclopedias

1.4. In Theological Journals

• Hiebert, D. Edmond.Designation of the Readers in 1 Peter 1:1-2: The Geographical Location of the Readers: Bithynia. BSac 137:545 (Jan 80) p. 69

2.1. In Systematic Theologies

2.2. In Other Books

1.1. In English Dictionaries and Encyclopedias

1.2. In Bible Dictionaries and Encyclopedias

• Bithynia | Tyndale Bible Dictionary
• Bithynia | Baker Encyclopedia of the Bible
• Bithynia | The New Bible Dictionary, Third Edition
• Bithynia | Nelson’s New Illustrated Bible Dictionary
• Bithynia | Smith’s Bible Dictionary
• Βιθυνία, ας | Exegetical Dictionary of the New Testament
• Bithynia | Harper’s Bible Dictionary

1.3. In Theological Dictionaries and Encyclopedias

1.4. In Theological Journals

• Hiebert, D. Edmond.Designation of the Readers in 1 Peter 1:1-2: The Geographical Location of the Readers: Bithynia. BSac 137:545 (Jan 80) p. 69

2.1. In Systematic Theologies

2.2. In Other Books