 In 1942 , not long after the invasion , Prime Minister Pibulsonggram assumed the post of education minister himself , and appointed ML Pin as Director @-@ General of the Department of General Education . Although resources were limited due to the war , ML Pin was able to manage the budget and personnel to allow a countrywide 12 baht salary for rural local schoolteachers . During his term , every province was provided with at least one upper @-@ secondary school . He also became involved in frequent school migrations due to both the war and changing policy . 
