„Evaluation of Substance abuse among in school and out of school youth in Sokoto, northwestern Nigeria“, AJBR, sv. 23, izd. 3, str. 361–365, ruj. 2020, Pristupljeno: 13. lipanj 2026. [Na internetu]. Dostupno na: https://ojshostng.com/index.php/ajbr/article/view/90