Samadov, R. S. o‘g‘li. “MEHNAT HUQUQIDAGI MUDDATLARNING TURLARI: MODDIY VA NOMODDIY MUDDATLAR”. Educational Research in Universal Sciences, vol. 2, no. 4 SPECIAL, June 2023, pp. 1223-8, http://erus.uz/index.php/er/article/view/3047.