[1] Chen Lan-sun, The Models of Mathematical Ecology and Research Method, Science Press (1987). (in Chinese)
[2] Prajueshu, Statistical study of prey-predator in random environment, J. Indin. Statist. Assoc, 15 (1977).
[3] Wang Rong-liang, Periodic solution and asymptoticty of prey-predator system of periodic coefficients, Journal of Biomathematics, 1, 2 (1986), (in Chinese)
[4] Rosean, M., Ordinary Differential Equation, translated by Ye Yan-qian, Shanghai Press of Scientific Techniques (1981). (Chinese version)
[5] Qin Yuan-xun, Wang Lian and Wang Mu-qui, Theory and Application of Motion Stability, Science Press (1981). (in Chinese)