Nainggolan, M., Ardika, I.W., Ardhana, I.K. and Setiawan, I.K. 2020. Pentahelix model application for tourism development strategy. International journal of linguistics, literature and culture. 6, 2 (Mar. 2020), 12–18. DOI:https://doi.org/10.21744/ijllc.v6n2.864.