Silitonga,Mangasa. (1988). Penganatar Tatabahasa Transformasi / Mangasa Silitonga. PdanK.
Chicago Style (17th ed.) CitationSilitonga,Mangasa. Penganatar Tatabahasa Transformasi / Mangasa Silitonga. PdanK, 1988.
MLA (8th ed.) CitationSilitonga,Mangasa. Penganatar Tatabahasa Transformasi / Mangasa Silitonga. PdanK, 1988.
Warning: These citations may not always be 100% accurate.