Hawkins, Paula
Into the water
Noura Books, 2017
Buku Teks
Hawkins, Paula
Into the water
Doubleday, 2017
Buku Teks
Zhongguo da bai ke quan shu. Shui li = 中国大百科全书. 水利 = Encyclopedia of China Water Conservancy
Dabai Kequanshu Chubanshe, 1998
Buku Referensi
Hiebert, Murray
The encyclopedia of leadership
Mc Graw-Hill , 2001
Buku Teks
Economics - Encyclopedia
Buku Teks