Pratama, Bruce Maldy, et al. “Analisis Ketimpangan Wilayah Dan Interaksi Spasial Di Kabupaten Lembata Provinsi Nusa Tenggara Timur”. Prosiding University Research Colloquium, Feb. 2018, pp. 204-1, https://repository.urecol.org/index.php/proceeding/article/view/173.