This survey research was conducted to study teaching efficiency as well as comparing the individual factors and opinion on teaching efficiency of student center based on the National Education Act of B.E. 2542 (1999) Faculty of Business Administration Rajmangkala University of Technology Phra Nakhon. The sample taken for the investigation was 400 students who enrolled in the Faculty of Business Administration Rajamangala University of Technology Phra Nakhon for academic year 2010. The study presented the following results. 1. The perspective on teaching efficiency of student center based on the National Education Act of B.E. 2542 (1999) Faculty of Business Administration Rajmangkala University of Technology Phra Nakhon was in a high level. 2. The perspective on teaching efficiency of student center based on the National Education Act of B.E. 2542 (1999) Faculty of Business Administration Rajmangkala University of Technology Phra Nakhon classified by genders had a statistical significance at .05 level. 3. The perspective on teaching efficiency of student center based on the National Education Act of B.E. 2542 (1999) Faculty of Business Administration Rajmangkala University of Technology Phra Nakhon classified by study areas had a statistical significance at .05 level.

Petroleum hydrocarbon contamination in the environment is a public health concern as some compositions in petroleum hydrocarbons exert adverse effects on living organisms. Several methods have been used to reduce petroleum hydrocarbons from contaminated sites. Among these methods phytoremediation is an effective and environmental friendly method to decontaminate petroleum hydrocarbons in soils. Plants use three mechanisms to remove petroleum hydrocarbons from the environment including phytodegradation phytoaccumulation and rhizodegradation