[1] Following the completion of his studies, Malkhasyants taught Armenian at schools and became a regular contributor to periodicals and academic journals.

[2] After the founding of Yerevan State University in February 1920, Malkhasyants became a part of the faculty of the department of history and linguistics and was the first instructor to deliver a lecture there.

[2] Malkhasyants took an active interest in the study of classical and medieval Armenian historiography prior to his graduation from Saint Petersburg State.

He later published several other critical texts by Armenian historians, including the primary histories written by Pavstos Buzand (1896), Sebeos (1899), Ghazar Parpetsi (1904) and Movses Khorenatsi (1940).

Malkhasyants took a particular interest in Movses Khorenatsi and published over 50 works on the "Father of Armenian history" in the form of books, articles, and monographs.