00491nam a2200133Ia 4500 20251229125125.0 251229s9999 xx 000 0 und d QD 380 .M88 Muthui, Zipporah Wanjiku Determination of the mechanical properties of biodegradable thermoplastic- polyactic acid and comparision with those of polythylene Zipporah Wanjiku Muthui Njoro Egerton university 2010 Polymers-Biodegradation THE 446228 446228 0 0 0 0 EGERTONLIB AFR AFR 2025-12-29 0 QD 380 M88 036907 2025-12-29 12:51:25 2025-12-29 THE