(en) Christopher P. Baker, Jamaica, Lonely Planet Publications, (ISBN1-74059-161-5, lire en ligne), The ever-astute King Jammy herded the best talent of his day into his studio and became the 'don' of early ragga.
(en) Norman C. Stolzoff, Wake the town & tell the people: dancehall culture in Jamaica, Duke University Press, (ISBN0822325144, lire en ligne), no great aesthetic difference between the dancehall and early ragga— simply a technological one, as the latter employed computerized instrumentation.