Srivastava, H.M., author
John Wiley & Sons, 1977
Buku Teks
Nedya Shandri, author
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2019
UI - Skripsi (Membership)
Universitas Indonesia, 1989
UI - Skripsi (Membership)
Bonch-Bruevich, V.L., author
North-Holland , 1962
Buku Teks
Nesya Permata Sari, author
2015
UI - Tesis (Membership)