Hi! I recommend that you read this article titled Chanzo cha Makosa ya Kiisimu Miongoni mwa Wanafunzi Wanaozungumza Lahaja ya Kigichugu Wanapojifunza Kiswahili Kama Lugha ya Pili. Follow this DOI https://doi.org/10.37284/jammk.7.1.1912 to see it. Thank you in advance.