Phương. “STUDYING AND EVALUATING EFFECTS OF SOME HYDROPHILIC POLYMERS ON RELEASE PROPERTIES OF PHOSPHOROUS NUTRIENT IN SOIL, IMPROVING THE EFFICIENCY OF USING PHOSPHATE FERTILIZERS”. Journal of Military Science and Technology, no. 70, Dec. 2020, pp. 95-100, https://en.jmst.info/index.php/jmst/article/view/115.