Sinaga, Paber Parluhutan
Universitas Indonesia, 2016
UI - Tesis (Membership)
Hadi Prayitno
Universitas Indonesia, 2016
UI - Tesis (Membership)
Daragantina Nursani
Fakultas Teknik Universitas Indonesia, 2020
UI - Tesis (Membership)
Weston, Christine
Charles Scribner's Sons, 1946
Buku Teks
Dumanauw, J.F.
Gramedia, 1984
Buku Teks