Historical Revisionism in Textbooks?

In another interesting letter from the Education segment of the Sunday Star, writer, Gan Teck Yaw of Melaka was shocked by some serious historical revisionism present in our school textbooks.

Recently, I flipped through the pages of Tamadun Islam by Mahayudin Yahaya (revised edition, published in 2005), which targets STPM students, undergraduates, teachers and lecturers.

To my shock, the book claims that China's Ming Dynasty (1368-1644) was an Islamic dynasty and that its founder Chu Yuan Chang was a Muslim.

I did Modern History of China for my 'A' Levels, and never have I read anywhere to say that the Ming Dynasty was a Islamic dynasty or that its emperors were Muslims!

Ming Shi, which recorded the history of Yuan and Ming dynastis clearly stated that:

Chu Yuan Chang had in fact become a Buddhist monk before he rose against the Yuan Dynasty and became the first Ming emperor. Ming Shi, Ming Shilu and other sources also showed that Ming emperors were either Buddhists or Taoists.

Do a quick search in the various search engines and you will find no corroborating evidence that the Ming Dynasty was a Muslim dynasty or that it's emperor was a Muslim. References regards Islam as tolerated in China with several Islamic officials in its government.

For example at the historical outline of Chinese history at the University of Maryland stated that:

Islam had been introduced into Chinese culture during the Tang dynasty, and had spread rapidly during the Mongol dynasty. The Ming dynasty tolerated Islam and even appointed several Islamic officials in its government. For the most part, however, the Islamic community was separate from the Chinese community. They lived in their own villages or lived in their own sections of the cities.

Or at fsmitha.com:

The rebellion [against the Mongol Yuan dynasty] took shape first around Guangzhou in 1352. A Buddhist monk and former boy beggar, Zhu Yuanzhang, threw off his vestments, joined the rebellion, and his exceptional intelligence took him to the head of a rebel army. By 1355 the rebellion had spread through much of China, accompanied by anarchy. Zhu Yuanzhang won people to his side by forbidding his soldiers to pillage. In 1356, Zhu Yuanzhang captured Nanjing and made it his capital, and there he won the help of Confucian scholars who issued pronouncements for him and performed rituals in his claim of the Mandate of Heaven.

Who sanctions the writing of these books and what's the process to ensure that our students actually learn the right facts and figures?