Quite a lot seems to have been published on these subjects.
On Indian economic thought, one could consult:
B. Sen, Economics in Kautiliya, Calcutta 1967
J.J. Spengler, Indian Economic Thought, Duke University Press, 
Durham, N.C. 1971
A.K. Dasgupta, A History of Indian Economic Thought, Routledge 1993.

On Japanese economic thought:
T. Morris-Suzuki, A History of Japanese Ec. Thought, Routledge 1989.
C. Sugiyama, The Origins of Economic Thought in Japan, Routledge 1994.

On Islamic economic thought:
M.Y. Essid, Islamic Economic Thought, in S. Todd Lowry (ed.), 
Pre-Classical Economic Thought, Kluwer, Boston 1987.
S.M. Ghazanfar en A. Azim Islabi, Ec. thought of an Arab scholastic: 
Abu Hamid al-Ghazali (A.H. 450-505/A.D. 1058-1111), HOPE 22:2, 1990.
L. Baeck, The Economic Thought of Classical Islam, Diogenes 154, probably 1991.
Imad A. Ahmad, Islam and the Medieval Progenitors of Austrian 
Economics, www.minaret.org/austrian.htm, 1995.
H. Hosseini, Understanding the Market Mechanism before Adam Smith: 
Economic Thought in Medieval Islam, HOPE 27:3, 1995.
Muhammad Umer Chapra, Islamic Economic Thought and the New Global 
Economy, Islamic Economic Studies Vol. 9 No. 1, Sept. 2001
S.M. Ghazanfar, Medieval Islamic Economic Thought: Filling the " 
Great Ghap"  in European economics, Routledge Curzon, London 2003.

Hans Visser