Chia, Josephine
Katak dalam tempurung = Frog under a coconut shell /​ Josephine Chia
Serambi Ilmu Semesta, 2014
 Buku Teks
Simanjuntak, Wasinton
The Use of Carbon Dioxide Released from Coconut Shell Combustion to Produce Na2CO3
Universitas Lampung. Faculty of Mathematics and Natural Science, 2014
 Artikel Jurnal
Donoghue, Emma, 1969-
Frog Music
Picador, 2015
 Buku Teks
Zhong, Lihui
Wo de mu qin = 我的母親 = My mother
Da Di Chu Ban She, 1986
 Buku Teks
Yuniardi
Pemanfaatan serabut dan tempurung kelapa sebagai material ringan timbunan = The usage of coconut's fiber and shell as lightweight fill material
2008
 UI - Skripsi (Open)