Syed Muammar Najib Syed Yusoh Yoshihiko Nomura Naomi Kokubo Tokuhiro Sugiura Hirokazu Matsui Norihiko Kato Dual Mode Fingertip Guiding Manipulator for Blind Persons Enabling Passive/Active Line-Drawing Explorations. 851-858 2008 ICCHP http://dx.doi.org/10.1007/978-3-540-70540-6_126 conf/icchp/2008 db/conf/icchp/icchp2008.html#YusohNKSMK08