Published in Gulf Research Reports, in 1962, in volume 1, issue 2, pages 59-106

Published in Gulf Research Reports, in 1962, in volume 1, issue 3, pages 107-114

Published in Gulf Research Reports, in 1962, in volume 1, issue 3, pages 115-118

Published in Gulf Research Reports, in 1962, in volume 1, issue 3, pages 118-121

Published in Gulf Research Reports, in 1962, in volume 1, issue 3, pages 122-130