nubi mau minta tolong gan 1. judul : Standard Operating Procedures (SOPs): How to Write Them to Be Effective Tools author :Janet Gough and Michael Hamrell publisher: Drug Information Journal, July 2010; vol. 44, 4: pp. 463-468. http://dij.sagepub.com/cgi/reprint/44/4/463 mohon bantuannya
