أرسل هذا في رسالة قصيرة: Physico-chemical characterization of natural lake pigments obtained from Caesalpinia Sappan Linn. and their composite films for poly(lactic acid)-based packaging materials

__    __    _____    ______      ___      _  __  
\ \\ / //  |  ___|| |      \\   / _ \\   | |/ // 
 \ \/ //   | ||__   |  --  //  / //\ \\  | ' //  
  \  //    | ||__   |  --  \\ |  ___  || | . \\  
   \//     |_____|| |______// |_||  |_|| |_|\_\\ 
    `      `-----`  `------`  `-`   `-`  `-` --`