Gaya APA

Gibbs, J. (). Tribes: a new way of learning and being together / by Jeanne Gibbs . : Centre Source Systems.

Gaya MLA

Gibbs, Jeanne. "Tribes: a new way of learning and being together / by Jeanne Gibbs". : Centre Source Systems, . Hukum Ekonomi Syariah (Mua'malah).