Ngah, H. (2022). Validation of a Malay version of knowledge, attitude, and practice towards safe working in a confined space questionnaire and respiratory health problems among confined space workers of water services industry in the Central Region of Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ngah, Hamiza. Validation of a Malay Version of Knowledge, Attitude, and Practice Towards Safe Working in a Confined Space Questionnaire and Respiratory Health Problems Among Confined Space Workers of Water Services Industry in the Central Region of Malaysia. 2022.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Ngah, Hamiza. Validation of a Malay Version of Knowledge, Attitude, and Practice Towards Safe Working in a Confined Space Questionnaire and Respiratory Health Problems Among Confined Space Workers of Water Services Industry in the Central Region of Malaysia. 2022.