أرسل هذا في رسالة قصيرة: THE EFFECT OF HYDROCHLORIC ACID SOLUTION TREATMENT TOWARDS CHARACTERS OF INDONESIAN NATURAL ZEOLITE

  ______   _    _    _    _      ___      ______  
 /_   _// | || | || | || | ||   / _ \\   /_   _// 
 `-| |,-  | || | || | || | ||  | / \ ||  `-| |,-  
   | ||   | \\_/ || | \\_/ ||  | \_/ ||    | ||   
   |_||    \____//   \____//    \___//     |_||   
   `-`'     `---`     `---`     `---`      `-`'