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An Introduction to Differential Topology, de Rham Theory and Morse Theory
This note covers the following topics: Basics of Differentiable Manifolds, Local structure of smooth maps, Transversality Theory, IDifferential Forms and de Rham Theory, TIensors and some Riemannian Geometry.
Author(s): Michael Muger
80 Pages 
Differential Topology by Andrew Kobin
This note covers Smooth manifolds, Regular values, Transversality and embeddings, Vector bundles.
Author(s): Andrew Kobin
52 Pages
Topics in Differential Topology by Mohammad F Tehrani
This note explains the following topics: preliminaries, Different homology theories and their interaction, Classifying spaces, An introduction to symplectic topology.
Author(s): Mohammad F Tehrani
104 Pages
An Introduction to Differential Topology, de Rham Theory and Morse Theory
This note covers the following topics: Basics of Differentiable Manifolds, Local structure of smooth maps, Transversality Theory, IDifferential Forms and de Rham Theory, TIensors and some Riemannian Geometry.
Author(s): Michael Muger
80 Pages
Introduction To Differential Topology
The first half of the book deals with degree theory, the Pontryagin construction, intersection theory, and Lefschetz numbers. The second half of the book is devoted to differential forms and deRham cohomology.
Author(s): Joel W. Robbin and Dietmar A. Salamon
306 Pages