here is the ebook of “Himpunan Peraturan Perundangan Keselamatan dan Kesehatan Kerja“. basically this book is needed for all indonesian safety worker to learns all about the laws that were written to safeguard the wellbeing of every indonesian workers.
it complies with all of the international standard needed to prevent unwanted accident happened at the workplace. so I suggest you to download these ebook and learns straight away of all the laws being mentioned in the book.
ps: the book is written in bahasa indonesia.
you can also download the full lecture in this link