Pugacheva และผู้แต่งคนอื่นๆ. (2009) The significance of personal contacts between the Russian imperial family and the royal court of Siam in the late 19th-early 20th centuries. Chulalongkorn university:ม.ป.ท.Pugacheva และผู้แต่งคนอื่นๆ. 2009. The significance of personal contacts between the Russian imperial family and the royal court of Siam in the late 19th-early 20th centuries. ม.ป.ท.:Chulalongkorn university;Pugacheva และผู้แต่งคนอื่นๆ. The significance of personal contacts between the Russian imperial family and the royal court of Siam in the late 19th-early 20th centuries. ม.ป.ท.:Chulalongkorn university, 2009. Print.