MEDANI, S. M. E.-. and MALLAH, N. M. E.-. (1995) “?p-DIMETHYLAMINOBENZALDEHYDRAZONE DERIVATIVES AS INDICATORS”, Biological Sciences - PJSIR, 38(9-10), pp. 333–336. Available at: http://biostaging.pjsir.org/index.php/biological-sciences/article/view/2514 (Accessed: 8 June 2025).