Columbia subject headings:
Batak (Indonesian people)
Huria Kristen Batak Protestan--Catechisms.
Huria Kristen Batak Protestan--Creeds.
Lutheran Church--Indonesia--Sumatra.
Missions--Indonesia--Sumatra.
Harvard subject headings:
Huria Kristen Batak Protestan--Catechisms.
Lutheran Church--Indonesia--Sumatra.
Princeton subject headings: