Dowroong Watcharinrat. 1997. Effectiveness of gasoline station managers in metro Bangkok. , University of Philippines;
Dowroong Watcharinrat. (1997) Effectiveness of gasoline station managers in metro Bangkok . University of Philippines/Manila.
Dowroong Watcharinrat. Effectiveness of gasoline station managers in metro Bangkok. . Manila:University of Philippines, 1997.
Dowroong Watcharinrat. (1997) Effectiveness of gasoline station managers in metro Bangkok . University of Philippines/Manila.