Tobing, O. S. L. Umpasa and Umpama in Batak Toba Culture as A Means of Catechism in Medan Catholic Churches. IAIN Pontianak.
Chicago Style (17th ed.) CitationTobing, Ona Sastri Lumban. Umpasa and Umpama in Batak Toba Culture as A Means of Catechism in Medan Catholic Churches. IAIN Pontianak.
MLA (9th ed.) CitationTobing, Ona Sastri Lumban. Umpasa and Umpama in Batak Toba Culture as A Means of Catechism in Medan Catholic Churches. IAIN Pontianak.
Warning: These citations may not always be 100% accurate.