Nababan, P. W. J. 1981. A grammar of Toba-Batak. (Pacific Linguistics D, 37.) Canberra: The Australian National University. (Accessed 23 December 2023).
@book{bonmannsymmetrical-nababan1981tobabatak,
address = {Canberra},
author = {Nababan, P. W. J.},
note = {Accessed 23 December 2023},
publisher = {The Australian National University},
series = {Pacific Linguistics D},
title = {A grammar of Toba-Batak},
volume = {37},
year = {1981}
}