Secret knock detecting door lock

Main Author: Abdul Rauf Bin Zulkifli
Other Authors: Ahmad Syauqi Bin Nurolhadi
Format: Final Year Project
Published: [s.n.]: [s.l.], c2019.
Subjects:
Item Description: Final year project (Session May-Sept 2019)
Physical Description: xii, 47p.: col. ill.; 30cm.