The controversy became heated when Ping Charoensiriwat, better known as Ajarn Ping, who runs the popular Da'vance tutoring school, claimed to have found at least five mistakes in that section of the exam
Ajarn Ping claimed questions 58, 63, 72, 80 and 85 had answers that did not correspond with what was taught in Ministry of Education authorised textbooks. She, supported by numerous students, backed up