National Seminar on Industrial Relations and Labour Laws Kuala Lumpur & Pusat Daya Pengeluaran Negara. (1973). Proceedings of the National Seminar on Industrial Relations and Labour Laws, 18th-20th October 1973. Pusat Daya Pengeluaran Negara.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Seminar on Industrial Relations and Labour Laws Kuala Lumpur و Pusat Daya Pengeluaran Negara. Proceedings of the National Seminar on Industrial Relations and Labour Laws, 18th-20th October 1973. [Kuala Lampur]: Pusat Daya Pengeluaran Negara, 1973.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)National Seminar on Industrial Relations and Labour Laws Kuala Lumpur و Pusat Daya Pengeluaran Negara. Proceedings of the National Seminar on Industrial Relations and Labour Laws, 18th-20th October 1973. Pusat Daya Pengeluaran Negara, 1973.