Thammarat Koottatep <br/><br/>
Environmental health and sanitation 

<br/><br/> Mid-semester Examination: 8 March, 2007 (Prof. Thammarat Koottatep)  Final Examination: 5 May, 2008  Mid-semester Examination: 8 March, 2009 (Prof. Thammarat Koottatep)  Mid-semester Examination: 3 March, 2010 (Prof. Thammarat Koottatep)  Final Examination: 8 May, 2010  Mid-semester Examination: 5 March, 2013 (Prof. Thammarat Koottatep)  Final Examination: 6 May, 2013  Mid-semester Examination: 5 March, 2014 (Prof. Thammarat Koottatep)  Final Examination: 2 May, 2014  Mid-semester Examination: 8 March, 2015 (Prof. Thammarat Koottatep)  Mid-semester Examination: 3 March, 2016 (Prof. Thammarat Koottatep)  Final Examination: 28 April, 2016 (Prof. Thammarat Koottatep)  Mid-semester Examination: 28 February, 2017 (Prof. Thammarat Koottatep)  Final Examination: 4 May, 2017  Mid-semester Examination: 28 February, 2018 (Prof. Thammarat Koottatep)  Final Examination: 3 May, 2018  Mid-semester Examination: 27 February, 2019 (Prof. Thammarat Koottatep)  Final Examination: 29 April, 2019