na INLIS000000000010534 20231202142325 231202||||||||| | ||| |||| || | 010-1223010534 id 551.56 551.56 PED Pedoman perencanaan penangkal petir Jakarta Ziyad Visi Media 1987 vi, 62 hlm. : ilus. ; 21 cm. R20.17 - R20-0334 Penangkal -- Petir