Dr. Mahesh Pal Singh. “Experimental Determination Of Stability Constant And Thermodynamical Parameter Of Quaternary Complexes Of Some Lanthanides”. International Journal of Advanced Research in Multidisciplinary Sciences EISSN 2581-8996, vol. 2, no. 2, May 2019, pp. 195-8, https://journal.ijarms.org/index.php/ijarms/article/view/287.