TY  - BOOK
AU  - Badillo, Shaira R. 
AU  -  Higino M. Avilla III, Jerfferson S.M. Gongora, Ace Rapahel S. Bongalos and Paterdom G. Reynon Jr.
TI  - Creating and comparing egg shell chalk and dura-smooth polar bear commercial chalk in terms of writing and physical qualities on illustration board
AV  - TT 896.7 B34 2019
PY  - 2019///
CY  - Marikina City
KW  - 1. Egg shells -- Case studies
N1  - Includes: references
ER  -