APA-ийн эшлэл(7 дахь хэвлэлт)

Hristova, S. G. (2009). Qualitative investigations and approximate methods for impulsive equations. Nova Science Publishers, Inc..

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Hristova, Snezhana G. Qualitative Investigations and Approximate Methods for Impulsive Equations. New York: Nova Science Publishers, Inc., 2009.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Hristova, Snezhana G. Qualitative Investigations and Approximate Methods for Impulsive Equations. Nova Science Publishers, Inc., 2009.