Seminar on Instruction and Instructional Materials in Institutions of Higher Learning in Singapore Singapore, Institute of Educational Technology. Protem Committee, & Tham, S. C. (1975). Instruction and instructional materials in institutions of higher learning in Singapore: Proceedings of the seminar held in Singapore, 18-20 February 1974. s.n.].
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Seminar on Instruction and Instructional Materials in Institutions of Higher Learning in Singapore Singapore, Institute of Educational Technology. Protem Committee, و Seong Chee Tham. Instruction and Instructional Materials in Institutions of Higher Learning in Singapore: Proceedings of the Seminar Held in Singapore, 18-20 February 1974. [s.l.: s.n.], 1975.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Seminar on Instruction and Instructional Materials in Institutions of Higher Learning in Singapore Singapore, et al. Instruction and Instructional Materials in Institutions of Higher Learning in Singapore: Proceedings of the Seminar Held in Singapore, 18-20 February 1974. s.n.], 1975.