YEREVAN.-Armenian minister of education and science Armen Ashotyan signed an order "On approving the investment amount of school textbooks for 2012-2013 academic year”.  Investments for 10, 11 and 12 grades' textbooks of Armenian language, Armenian literature, Armenian history and Social science should be transferred to 900005281499 state treasury account.  According to the same order, elementary school textbooks are provided free of charge. The investment amount of textbooks for 2012-2013 academic year are determined and are presented in the attached appendix.