@article{Simanjuntak_Mulyadi_2019, title={Grammatical Roles and Relations of Batak Toba Language: Typology Study}, volume={4}, url={http://dx.doi.org/10.22161/ijels.4.3.42}, DOI={10.22161/ijels.4.3.42}, number={3}, journal={International Journal of English Literature and Social Sciences}, publisher={AI Publications}, author={Simanjuntak, Tarida Alvina and Mulyadi, Mulyadi}, year={2019} }