W.J. Waworoentoe
Living environment, human habitat and settlements in north sulawesi / W.J. Waworoentoe
1995
 Artikel Jurnal
Lobel, Jason William
Vowel fronting, raising, and backing in Luzon and North-Central Sulawesi
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2021
 Artikel Jurnal
Gunawan Setiadi
Optimasi logistik LNG pada Pembangkit Listrik Tenaga Gas di Sulawesi Utara, Sulawesi Tengah dan Gorontalo = Optimization of LNG logistics at Gas Power Plant in North Sulawesi, Central Sulawesi and Gorontalo
Fakultas Teknik Universitas Indonesia, 2019
 UI - Tesis (Membership)
S. Bachri
Structural pattern and stress system evolution during neogene - pleistocene times in the central part of the north arm of Sulawesi
Pusat Survai geologi Bandung, 2011
 Artikel Jurnal
Jones, Gavin W.
The population of North Sulawesi
Gajah Mada University Press, 1977
 Buku Teks