Bhutan. Ministry of Works & Human Settlement & Bhutan. Ministry of Works & Human Settlement. Policy and Planning Division. (2006). Annual information bulletin. Policy and Planning Division, Ministry of Works and Human Settlement, Royal Govt. of Bhutan.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Bhutan. Ministry of Works & Human Settlement و Bhutan. Ministry of Works & Human Settlement. Policy and Planning Division. Annual Information Bulletin. Thimphu: Policy and Planning Division, Ministry of Works and Human Settlement, Royal Govt. of Bhutan, 2006.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Bhutan. Ministry of Works & Human Settlement و Bhutan. Ministry of Works & Human Settlement. Policy and Planning Division. Annual Information Bulletin. Policy and Planning Division, Ministry of Works and Human Settlement, Royal Govt. of Bhutan, 2006.