A Dictionary of Asian Christianity. Ed. Sunquist.
Oxford Encyclopedia of South Asian Christianity. Ed. Hedlund. 2 vols.The following are among the dictionaries and encyclopedias of Christianity that tend to offer starter-entries on the history of Christianity in particular regions or countries, with starter-bibliographies:
Oxford Dictionary of the Christian Church. 4th ed. Ed. Louth. 2 vols.
Religion Past and Present. Ed. Betz, Browning, Janowski, & Jüngel. 14 vols. by 
Encyclopedia of Protestantism. Ed. Hillerbrand. 4 vols.
New Catholic Encyclopedia. 2nd ed. Ed. Marthaler. 15 vols. + suppls.
Encyclopedia of Christianity. Ed. Fahlbusch et al. 5 vols.Fill this out with the major dictionaries and encyclopedias of South Asian history, Southeast Asian history, etc.
A History of Christianity in Asia. 2 vols. by 
Reform and Explansion, 1500-1660. Cambridge History of Christianity by 
World Christianities c. 1815-c. 1914. Cambridge History of Christianity by 
World Christianities, c. 1914-c. 2000. Cambridge History of Christianity by 
Handbook of Christianity in China, 2 vols. by 
Christianity in East and Southeast Asia by 
Christianity in Oceania by 
Christianity in South and Central Asia by 
The Oxford Handbook of Christianity in Asia by 
